MediaPipe install fails on OS X

Preamble

OS X 10.13.6. Trying to install MediaPipe, using this guide, Mediapipe – Getting started – install – installing on macos. Installation failures when running:

$ bazel run --define MEDIAPIPE_DISABLE_GPU=1 mediapipe/examples/desktop/hello_world:hello_world --verbose_failures

Each attempt results in a different linking error, there is no consistency.

This blog follows on from Course notes: Hand Tracking, which requires MediaPipe.

See also

Links

Apparently MediaPipe only works on Catalina 10.15.x and above, see:

Failures

MediaPipe issues

In PyCharm, I got an installation fail on pip install mediapipe, similar to the zbar fail, in Course notes: QR and bar codes.

Using brew install mediapipe didn’t help either.

Following this, https://google.github.io/mediapipe/getting_started/install.html#installing-on-macos, seems a bit of a bind, although there is not much to it:

chmod +x "bazel-${BAZEL_VERSION}-installer-darwin-x86_64.sh"
./bazel-${BAZEL_VERSION}-installer-darwin-x86_64.sh --user

You need to add ~/bin to your path, and add the first line to .bash_profile, for bash completion:

source /Users/macbook/.bazel/bin/bazel-complete.bash
export PATH=/Users/<username>/bin:$PATH
  • Ensure Python 3.7 and six are installed, from step 5
$ brew install python
$ sudo ln -s -f /usr/local/bin/python3.7 /usr/local/bin/python
$ python --version
Python 3.7.4
$ pip3 install --user six
  • Get mediapipe:
git clone https://github.com/google/mediapipe.git
cd mediapipe

It is big, around 400 MB.

Then run hello world

export GLOG_logtostderr=1
bazel run --define MEDIAPIPE_DISABLE_GPU=1 \
mediapipe/examples/desktop/hello_world:hello_world

and that is about it.

However, I get an error upon each attempt, each time, with the linker failing on a different library:

    1. libthrow_delegate.a – also a tensorflow download warning
    2. libdemangle_internal.a – also a tensorflow download warning
    3. libstatusor.a
    4. libzlib.a
    5. libflag.a
    6. libint128.a
    7. libint128.a
    8. libzlib.a
    9. libint128.a
    10. libexponential_biased.a

Note that the first two attempts also has a tensorflow download warning, although these could have been related to a network issue.

The second and subsequent attempts use the --verbose-failures option.

The full outputs are listed below:

Failure #1

This causes another long download and install… But it installs tensorflow, so it will probably fail… which it did:

$ bazel run --define MEDIAPIPE_DISABLE_GPU=1 \
>     mediapipe/examples/desktop/hello_world:hello_world
Starting local Bazel server and connecting to it...
... still trying to connect to local Bazel server after 10 seconds ...
INFO: SHA256 (https://github.com/bazelbuild/rules_foreign_cc/archive/main.zip) = bbf9e0814ed107bdafa39a9034ce3796cc9e52751da7b208851501c9e064968c
DEBUG: Rule 'rules_foreign_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "bbf9e0814ed107bdafa39a9034ce3796cc9e52751da7b208851501c9e064968c"
DEBUG: Repository rules_foreign_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:39:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/workspace_definitions.bzl:6:6: `@rules_foreign_cc//:workspace_definitions.bzl` has been replaced by `@rules_foreign_cc//foreign_cc:repositories.bzl`. Please use the updated source location
WARNING: Download from http://mirror.tensorflow.org/github.com/bazelbuild/rules_closure/archive/cf1e44edb908e9616030cc83d085989b8e6cd6df.tar.gz failed: class com.google.devtools.build.lib.bazel.repository.downloader.UnrecoverableHttpException GET returned 404 Not Found
INFO: SHA256 (https://github.com/bazelbuild/rules_cc/archive/master.zip) = 39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6
DEBUG: Rule 'rules_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6"
DEBUG: Repository rules_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:33:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/tools/build_defs/deprecation.bzl:5:10: `@rules_foreign_cc//tools/build_defs/...` is deprecated, please find the relevant symbols in `@rules_foreign_cc//foreign_cc/...`. Note that the core rules can now be loaded from `@rules_foreign_cc//foreign_cc:defs.bzl`
INFO: Analyzed target //mediapipe/examples/desktop/hello_world:hello_world (59 packages loaded, 1364 targets configured).
INFO: Found 1 target...
ERROR: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/com_google_absl/absl/base/BUILD.bazel:284:11: Linking external/com_google_absl/absl/base/libthrow_delegate.a failed: (Exit 1): libtool failed: error executing command /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/base/libthrow_delegate.a-2.params

Use --sandbox_debug to see verbose messages from the sandbox libtool failed: error executing command /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/base/libthrow_delegate.a-2.params

Use --sandbox_debug to see verbose messages from the sandbox
error: /Library/Developer/CommandLineTools/usr/bin/libtool: no output file specified (specify with -o output)
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] [-no_warning_for_no_symbols]
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table ] [-seg_addr_table_filename ] [-all_load] [-noall_load]
Target //mediapipe/examples/desktop/hello_world:hello_world failed to build
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 413.969s, Critical Path: 130.76s
INFO: 568 processes: 421 internal, 147 darwin-sandbox.
FAILED: Build did NOT complete successfully
FAILED: Build did NOT complete successfully

First, the tensorflow download failed warning(rules_closure), and then there is a linking error (libthrow_delegate.a).

Failure #2

Running it again,, gave a libdemangle_internal.a error:

$ bazel run --define MEDIAPIPE_DISABLE_GPU=1     mediapipe/examples/desktop/hello_world:hello_world --verbose_failures
DEBUG: Rule 'rules_foreign_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "bbf9e0814ed107bdafa39a9034ce3796cc9e52751da7b208851501c9e064968c"
DEBUG: Repository rules_foreign_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:39:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/workspace_definitions.bzl:6:6: `@rules_foreign_cc//:workspace_definitions.bzl` has been replaced by `@rules_foreign_cc//foreign_cc:repositories.bzl`. Please use the updated source location
WARNING: Download from http://mirror.tensorflow.org/github.com/bazelbuild/rules_closure/archive/cf1e44edb908e9616030cc83d085989b8e6cd6df.tar.gz failed: class com.google.devtools.build.lib.bazel.repository.downloader.UnrecoverableHttpException GET returned 404 Not Found
DEBUG: Rule 'rules_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6"
DEBUG: Repository rules_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:33:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/tools/build_defs/deprecation.bzl:5:10: `@rules_foreign_cc//tools/build_defs/...` is deprecated, please find the relevant symbols in `@rules_foreign_cc//foreign_cc/...`. Note that the core rules can now be loaded from `@rules_foreign_cc//foreign_cc:defs.bzl`
INFO: Analyzed target //mediapipe/examples/desktop/hello_world:hello_world (0 packages loaded, 0 targets configured).
INFO: Found 1 target...
ERROR: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/com_google_absl/absl/debugging/BUILD.bazel:188:11: Linking external/com_google_absl/absl/debugging/libdemangle_internal.a failed: (Exit 1): libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/276/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/debugging/libdemangle_internal.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/276/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/debugging/libdemangle_internal.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox
error: /Library/Developer/CommandLineTools/usr/bin/libtool: no output file specified (specify with -o output)
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] [-no_warning_for_no_symbols]
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table ] [-seg_addr_table_filename ] [-all_load] [-noall_load]
Target //mediapipe/examples/desktop/hello_world:hello_world failed to build
INFO: Elapsed time: 3.820s, Critical Path: 0.95s
INFO: 147 processes: 147 internal.
FAILED: Build did NOT complete successfully
FAILED: Build did NOT complete successfully
$

I gave up at this point.

However, this issue seems to be mentioned in the MediaPipe install guide: Fail to fetch remote dependency repositories:

The error message:

ERROR: An error occurred during the fetch of repository 'org_tensorflow':
   java.io.IOException: Error downloading [https://mirror.bazel.build/github.com/tensorflow/tensorflow/archive/77e9ffb9b2bfb1a4f7056e62d84039626923e328.tar.gz, https://github.com/tensorflow/tensorflow/archive/77e9ffb9b2bfb1a4f7056e62d84039626923e328.tar.gz] to /sandbox_path/external/org_tensorflow/77e9ffb9b2bfb1a4f7056e62d84039626923e328.tar.gz: Tried to reconnect at offset 9,944,151 but server didn't support it

or

WARNING: Download from https://storage.googleapis.com/mirror.tensorflow.org/github.com/bazelbuild/rules_swift/releases/download/0.12.1/rules_swift.0.12.1.tar.gz failed: class java.net.ConnectException Connection timed out (Connection timed out)

usually indicates that Bazel fails to download necessary dependency repositories that MediaPipe needs. MedaiPipe has several dependency repositories that are hosted by Google sites. In some regions, you may need to set up a network proxy or use a VPN to access those resources. You may also need to append --host_jvm_args "-DsocksProxyHost=<ip address> -DsocksProxyPort=<port number>" to the Bazel command. See this GitHub issue for more details.

If you believe that it’s not a network issue, another possibility is that some resources could be temporarily unavailable, please run bazel clean --expunge and retry it later. If it’s still not working, please file a GitHub issue with the detailed error message.

Failure #3

Strangely, the next day, after clean –expunge and running again I got a different linking failure (libstatusor.a), without the tensorflow download warning:

bazel clean --expunge
Starting local Bazel server and connecting to it...
... still trying to connect to local Bazel server after 10 seconds ...
INFO: Starting clean.
$ bazel run --define MEDIAPIPE_DISABLE_GPU=1     mediapipe/examples/desktop/hello_world:hello_world --verbose_failures
Starting local Bazel server and connecting to it...
INFO: SHA256 (https://github.com/bazelbuild/rules_foreign_cc/archive/main.zip) = d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7
DEBUG: Rule 'rules_foreign_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7"
DEBUG: Repository rules_foreign_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:39:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/workspace_definitions.bzl:6:6: `@rules_foreign_cc//:workspace_definitions.bzl` has been replaced by `@rules_foreign_cc//foreign_cc:repositories.bzl`. Please use the updated source location
INFO: SHA256 (https://github.com/bazelbuild/rules_cc/archive/master.zip) = 39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6
DEBUG: Rule 'rules_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6"
DEBUG: Repository rules_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:33:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/tools/build_defs/deprecation.bzl:5:10: `@rules_foreign_cc//tools/build_defs/...` is deprecated, please find the relevant symbols in `@rules_foreign_cc//foreign_cc/...`. Note that the core rules can now be loaded from `@rules_foreign_cc//foreign_cc:defs.bzl`
INFO: Analyzed target //mediapipe/examples/desktop/hello_world:hello_world (59 packages loaded, 1364 targets configured).
INFO: Found 1 target...
ERROR: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/com_google_absl/absl/status/BUILD.bazel:69:11: Linking external/com_google_absl/absl/status/libstatusor.a failed: (Exit 1): libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/188/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/status/libstatusor.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/188/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/status/libstatusor.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox
error: /Library/Developer/CommandLineTools/usr/bin/libtool: no output file specified (specify with -o output)
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] [-no_warning_for_no_symbols]
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table ] [-seg_addr_table_filename ] [-all_load] [-noall_load]
Target //mediapipe/examples/desktop/hello_world:hello_world failed to build
INFO: Elapsed time: 459.702s, Critical Path: 225.48s
INFO: 537 processes: 353 internal, 184 darwin-sandbox.
FAILED: Build did NOT complete successfully
FAILED: Build did NOT complete successfully

Failure #4

Another run, 5 minutes later, and a different linking error (libzlib.a)! Is there no reproducibility?

$ bazel clean --expunge
INFO: Starting clean.
$ bazel run --define MEDIAPIPE_DISABLE_GPU=1     mediapipe/examples/desktop/hello_world:hello_world --verbose_failures
Starting local Bazel server and connecting to it...
INFO: SHA256 (https://github.com/bazelbuild/rules_foreign_cc/archive/main.zip) = d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7
DEBUG: Rule 'rules_foreign_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7"
DEBUG: Repository rules_foreign_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:39:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/workspace_definitions.bzl:6:6: `@rules_foreign_cc//:workspace_definitions.bzl` has been replaced by `@rules_foreign_cc//foreign_cc:repositories.bzl`. Please use the updated source location
INFO: SHA256 (https://github.com/bazelbuild/rules_cc/archive/master.zip) = 39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6
DEBUG: Rule 'rules_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6"
DEBUG: Repository rules_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:33:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/tools/build_defs/deprecation.bzl:5:10: `@rules_foreign_cc//tools/build_defs/...` is deprecated, please find the relevant symbols in `@rules_foreign_cc//foreign_cc/...`. Note that the core rules can now be loaded from `@rules_foreign_cc//foreign_cc:defs.bzl`
INFO: Analyzed target //mediapipe/examples/desktop/hello_world:hello_world (59 packages loaded, 1364 targets configured).
INFO: Found 1 target...
ERROR: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/zlib/BUILD.bazel:5:11: Linking external/zlib/libzlib.a [for host] failed: (Exit 1): libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/150/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/host/bin/external/zlib/libzlib.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/150/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/host/bin/external/zlib/libzlib.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox
error: /Library/Developer/CommandLineTools/usr/bin/libtool: no output file specified (specify with -o output)
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] [-no_warning_for_no_symbols]
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table ] [-seg_addr_table_filename ] [-all_load] [-noall_load]
Target //mediapipe/examples/desktop/hello_world:hello_world failed to build
INFO: Elapsed time: 408.745s, Critical Path: 191.15s
INFO: 471 processes: 323 internal, 148 darwin-sandbox.
FAILED: Build did NOT complete successfully
FAILED: Build did NOT complete successfully
$

What the f—? Four runs and four different errors!

Failure #5

Then libflag.a:

$ bazel clean --expunge
INFO: Starting clean.
$ bazel run --define MEDIAPIPE_DISABLE_GPU=1     mediapipe/examples/desktop/hello_world:hello_world --verbose_failures
Starting local Bazel server and connecting to it...
INFO: SHA256 (https://github.com/bazelbuild/rules_foreign_cc/archive/main.zip) = d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7
DEBUG: Rule 'rules_foreign_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7"
DEBUG: Repository rules_foreign_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:39:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/workspace_definitions.bzl:6:6: `@rules_foreign_cc//:workspace_definitions.bzl` has been replaced by `@rules_foreign_cc//foreign_cc:repositories.bzl`. Please use the updated source location
INFO: SHA256 (https://github.com/bazelbuild/rules_cc/archive/master.zip) = 39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6
DEBUG: Rule 'rules_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6"
DEBUG: Repository rules_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:33:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/tools/build_defs/deprecation.bzl:5:10: `@rules_foreign_cc//tools/build_defs/...` is deprecated, please find the relevant symbols in `@rules_foreign_cc//foreign_cc/...`. Note that the core rules can now be loaded from `@rules_foreign_cc//foreign_cc:defs.bzl`
INFO: Analyzed target //mediapipe/examples/desktop/hello_world:hello_world (59 packages loaded, 1364 targets configured).
INFO: Found 1 target...
ERROR: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/com_google_absl/absl/flags/BUILD.bazel:216:11: Linking external/com_google_absl/absl/flags/libflag.a failed: (Exit 1): libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/156/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/flags/libflag.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/156/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/flags/libflag.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox
error: /Library/Developer/CommandLineTools/usr/bin/libtool: no output file specified (specify with -o output)
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] [-no_warning_for_no_symbols]
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table ] [-seg_addr_table_filename ] [-all_load] [-noall_load]
Target //mediapipe/examples/desktop/hello_world:hello_world failed to build
INFO: Elapsed time: 343.598s, Critical Path: 124.29s
INFO: 508 processes: 354 internal, 154 darwin-sandbox.
FAILED: Build did NOT complete successfully
FAILED: Build did NOT complete successfully
$

Incredible. Literally unbelievable…

Failure # 6

This time the linker failed on libint128.a failed

$ bazel clean --expunge
Starting local Bazel server and connecting to it...
... still trying to connect to local Bazel server after 10 seconds ...
INFO: Starting clean.
$ bazel run --define MEDIAPIPE_DISABLE_GPU=1     mediapipe/examples/desktop/hello_world:hello_world --verbose_failures
Starting local Bazel server and connecting to it...
INFO: SHA256 (https://github.com/bazelbuild/rules_foreign_cc/archive/main.zip) = d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7
DEBUG: Rule 'rules_foreign_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7"
DEBUG: Repository rules_foreign_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:39:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/workspace_definitions.bzl:6:6: `@rules_foreign_cc//:workspace_definitions.bzl` has been replaced by `@rules_foreign_cc//foreign_cc:repositories.bzl`. Please use the updated source location
INFO: SHA256 (https://github.com/bazelbuild/rules_cc/archive/master.zip) = 39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6
DEBUG: Rule 'rules_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6"
DEBUG: Repository rules_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:33:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/tools/build_defs/deprecation.bzl:5:10: `@rules_foreign_cc//tools/build_defs/...` is deprecated, please find the relevant symbols in `@rules_foreign_cc//foreign_cc/...`. Note that the core rules can now be loaded from `@rules_foreign_cc//foreign_cc:defs.bzl`
INFO: Analyzed target //mediapipe/examples/desktop/hello_world:hello_world (59 packages loaded, 1364 targets configured).
INFO: Found 1 target...
ERROR: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/com_google_absl/absl/numeric/BUILD.bazel:27:11: Linking external/com_google_absl/absl/numeric/libint128.a failed: (Exit 1): libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/161/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/numeric/libint128.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/161/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/numeric/libint128.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox
error: /Library/Developer/CommandLineTools/usr/bin/libtool: no output file specified (specify with -o output)
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] [-no_warning_for_no_symbols]
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table ] [-seg_addr_table_filename ] [-all_load] [-noall_load]
Target //mediapipe/examples/desktop/hello_world:hello_world failed to build
INFO: Elapsed time: 345.452s, Critical Path: 136.62s
INFO: 500 processes: 342 internal, 158 darwin-sandbox.
FAILED: Build did NOT complete successfully
FAILED: Build did NOT complete successfully
$

Failure # 10

libexponential_biased.a

$ bazel clean --expunge
INFO: Starting clean.
$ bazel run --define MEDIAPIPE_DISABLE_GPU=1     mediapipe/examples/desktop/hello_world:hello_world --verbose_failures
Starting local Bazel server and connecting to it...
INFO: SHA256 (https://github.com/bazelbuild/rules_foreign_cc/archive/main.zip) = d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7
DEBUG: Rule 'rules_foreign_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7"
DEBUG: Repository rules_foreign_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:39:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/workspace_definitions.bzl:6:6: `@rules_foreign_cc//:workspace_definitions.bzl` has been replaced by `@rules_foreign_cc//foreign_cc:repositories.bzl`. Please use the updated source location
INFO: SHA256 (https://github.com/bazelbuild/rules_cc/archive/master.zip) = 39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6
DEBUG: Rule 'rules_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6"
DEBUG: Repository rules_cc instantiated at:
  /Users/macbook/mediapipe/WORKSPACE:33:13: in 
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/rules_foreign_cc/tools/build_defs/deprecation.bzl:5:10: `@rules_foreign_cc//tools/build_defs/...` is deprecated, please find the relevant symbols in `@rules_foreign_cc//foreign_cc/...`. Note that the core rules can now be loaded from `@rules_foreign_cc//foreign_cc:defs.bzl`
INFO: Analyzed target //mediapipe/examples/desktop/hello_world:hello_world (59 packages loaded, 1364 targets configured).
INFO: Found 1 target...
ERROR: /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/external/com_google_absl/absl/base/BUILD.bazel:614:11: Linking external/com_google_absl/absl/base/libexponential_biased.a failed: (Exit 1): libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/136/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/base/libexponential_biased.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox libtool failed: error executing command 
  (cd /private/var/tmp/_bazel_macbook/20f5790df9df632ec488e67f4fad7cad/sandbox/darwin-sandbox/136/execroot/mediapipe && \
  exec env - \
    PATH='/Users/macbook/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/TeX/texbin' \
    PWD=/proc/self/cwd \
  /usr/bin/libtool @bazel-out/darwin-fastbuild/bin/external/com_google_absl/absl/base/libexponential_biased.a-2.params)
Execution platform: @local_execution_config_platform//:platform

Use --sandbox_debug to see verbose messages from the sandbox
error: /Library/Developer/CommandLineTools/usr/bin/libtool: no output file specified (specify with -o output)
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] [-no_warning_for_no_symbols]
Usage: /Library/Developer/CommandLineTools/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table ] [-seg_addr_table_filename ] [-all_load] [-noall_load]
Target //mediapipe/examples/desktop/hello_world:hello_world failed to build
INFO: Elapsed time: 416.030s, Critical Path: 158.78s
INFO: 508 processes: 375 internal, 133 darwin-sandbox.
FAILED: Build did NOT complete successfully
FAILED: Build did NOT complete successfully
$

blah

Python version

Using a different approach, from here, https://github.com/google/mediapipe/issues/1466, mediapipe doesn’t support Python 3.9, only 3.6-3.9. However, my pip (I actually only have pip3) is 3.9:

$ ls -al /usr/local/bin/pip3
lrwxr-xr-x 1 macbook admin 37 Mar 1 05:12 /usr/local/bin/pip3 -> ../Cellar/python@3.9/3.9.2_1/bin/pip3
$ ls -al /usr/local/bin/pip3*
lrwxr-xr-x 1 macbook admin 37 Mar 1 05:12 /usr/local/bin/pip3 -> ../Cellar/python@3.9/3.9.2_1/bin/pip3
lrwxr-xr-x 1 macbook admin 39 Mar 1 05:12 /usr/local/bin/pip3.9 -> ../Cellar/python@3.9/3.9.2_1/bin/pip3.9

So symlinking pip to 3.7

$ ln -s /usr/local/Cellar/python\@3.7/3.7.10_2/bin/pip3 /usr/local/bin/pip

and adding a symlink for python 3.7 too, which previously wasn’t in /usr/local/bin (I had 2.7 in /usr/bin)

$ which python
/usr/bin/python
$ python --version
Python 2.7.16
...
$ ln -s /usr/local/Cellar/python\@3.7/3.7.10_2/bin/python3.7 /usr/local/bin/python

However, I still got the same error:

$ pip install mediapipe
ERROR: Could not find a version that satisfies the requirement mediapipe
ERROR: No matching distribution found for mediapipe

Maybe I need to change the /usr/local/bin/pip3 symlink, which currently points to 3.9?

Docker

There is also a Docker install for mediapipe, see Installing using Docker. See also Docker for High Sierra. This could also fix the tensorflow issues, see Tensorflow crashes on OSX.

However, when running “bazel hello world”, I got the exact same tensorflow rules_closure download failure as for the native OS X install above. However, I didn’t get the libthrow_delegate.a error (or any errors for that matter) and the hello world example did actually run:

$ docker run -it --name mediapipe mediapipe:latest
root@05a68a83dbd9:/mediapipe# GLOG_logtostderr=1 bazel run --define MEDIAPIPE_DISABLE_GPU=1 mediapipe/examples/desktop/hello_world:hello_world
Extracting Bazel installation...
Starting local Bazel server and connecting to it...
INFO: SHA256 (https://github.com/bazelbuild/rules_foreign_cc/archive/main.zip) = d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7
DEBUG: Rule 'rules_foreign_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "d8a6c747e10f745a7a3136cd5e242bde36bc1076e2169ef4560d1b4baf67ecc7"
DEBUG: Repository rules_foreign_cc instantiated at:
  no stack (--record_rule_instantiation_callstack not enabled)
Repository rule http_archive defined at:
  /root/.cache/bazel/_bazel_root/4884d566396e9b67b62185751879ad14/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /root/.cache/bazel/_bazel_root/4884d566396e9b67b62185751879ad14/external/rules_foreign_cc/workspace_definitions.bzl:6:6: `@rules_foreign_cc//:workspace_definitions.bzl` has been replaced by `@rules_foreign_cc//foreign_cc:repositories.bzl`. Please use the updated source location
WARNING: Download from http://mirror.tensorflow.org/github.com/bazelbuild/rules_closure/archive/cf1e44edb908e9616030cc83d085989b8e6cd6df.tar.gz failed: class com.google.devtools.build.lib.bazel.repository.downloader.UnrecoverableHttpException GET returned 404 Not Found
INFO: SHA256 (https://github.com/bazelbuild/rules_cc/archive/master.zip) = 39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6
DEBUG: Rule 'rules_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "39530432fdce0eda8e78d179330ff454f6cbec8973ab7310aab335460a9f06f6"
DEBUG: Repository rules_cc instantiated at:
  no stack (--record_rule_instantiation_callstack not enabled)
Repository rule http_archive defined at:
  /root/.cache/bazel/_bazel_root/4884d566396e9b67b62185751879ad14/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in 
DEBUG: /root/.cache/bazel/_bazel_root/4884d566396e9b67b62185751879ad14/external/rules_foreign_cc/tools/build_defs/deprecation.bzl:5:10: `@rules_foreign_cc//tools/build_defs/...` is deprecated, please find the relevant symbols in `@rules_foreign_cc//foreign_cc/...`. Note that the core rules can now be loaded from `@rules_foreign_cc//foreign_cc:defs.bzl`
INFO: Analyzed target //mediapipe/examples/desktop/hello_world:hello_world (57 packages loaded, 1352 targets configured).
INFO: Found 1 target...
INFO: From ProtoCompile mediapipe/calculators/internal/callback_packet_calculator.pb.h:
bazel-out/k8-fastbuild/bin/external/com_google_protobuf/src: warning: directory does not exist.
INFO: From ProtoCompile mediapipe/framework/calculator_profile.pb.h:
bazel-out/k8-fastbuild/bin/external/com_google_protobuf/src: warning: directory does not exist.
INFO: From ProtoCompile mediapipe/framework/tool/calculator_graph_template.pb.h:
bazel-out/k8-fastbuild/bin/external/com_google_protobuf/src: warning: directory does not exist.
INFO: From ProtoCompile mediapipe/framework/calculator.pb.h:
bazel-out/k8-fastbuild/bin/external/com_google_protobuf/src: warning: directory does not exist.
Target //mediapipe/examples/desktop/hello_world:hello_world up-to-date:
  bazel-bin/mediapipe/examples/desktop/hello_world/hello_world
INFO: Elapsed time: 788.661s, Critical Path: 374.25s
INFO: 467 processes: 467 processwrapper-sandbox.
INFO: Build completed successfully, 483 total actions
INFO: Build completed successfully, 483 total actions
I20210327 20:11:47.024367     9 hello_world.cc:56] Hello World!
I20210327 20:11:47.062677     9 hello_world.cc:56] Hello World!
I20210327 20:11:47.062758     9 hello_world.cc:56] Hello World!
I20210327 20:11:47.062839     9 hello_world.cc:56] Hello World!
I20210327 20:11:47.062922     9 hello_world.cc:56] Hello World!
I20210327 20:11:47.062964     9 hello_world.cc:56] Hello World!
I20210327 20:11:47.063261     9 hello_world.cc:56] Hello World!
I20210327 20:11:47.063356     9 hello_world.cc:56] Hello World!
I20210327 20:11:47.063443     9 hello_world.cc:56] Hello World!
I20210327 20:11:47.063522     9 hello_world.cc:56] Hello World!
root@05a68a83dbd9:/mediapipe# 

This is the end, my friend.

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