MEDIAPIPE failed run hello world from example

Question

UBUNTU 20.04 bazel 3.0.0- (@non-git) openjdk 11.0.8 2020-07-14

Actually, the error itself:

dmitry@dmitry-pc:~/mediapipe$ bazel build -c opt --define MEDIAPIPE_DISABLE_GPU=1 mediapipe/examples/desktop/hand_tracking:hand_tracking_cpu
Starting local Bazel server and connecting to it...
INFO: SHA256 (https://github.com/bazelbuild/rules_foreign_cc/archive/master.zip) = f358144776d3dfc5a928ef32a0e4fbe93c99b55772d70cca77a6478e34d96aa7
DEBUG: Rule 'rules_foreign_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "f358144776d3dfc5a928ef32a0e4fbe93c99b55772d70cca77a6478e34d96aa7"
DEBUG: Call stack for the definition of repository 'rules_foreign_cc' which is a http_archive (rule definition at /home/dmitry/.cache/bazel/_bazel_dmitry/870728c32b519bd8ea9ab1059ef39614/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/dmitry/mediapipe/WORKSPACE:39:1
INFO: SHA256 (https://github.com/bazelbuild/rules_cc/archive/master.zip) = d1d266f0ee34a413af9e70b27354faddc2f300d873bcc388508901121e08aff4
DEBUG: Rule 'rules_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "d1d266f0ee34a413af9e70b27354faddc2f300d873bcc388508901121e08aff4"
DEBUG: Call stack for the definition of repository 'rules_cc' which is a http_archive (rule definition at /home/dmitry/.cache/bazel/_bazel_dmitry/870728c32b519bd8ea9ab1059ef39614/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/dmitry/mediapipe/WORKSPACE:33:1
ERROR: /home/dmitry/.cache/bazel/_bazel_dmitry/870728c32b519bd8ea9ab1059ef39614/external/rules_cc/cc/private/rules_impl/cc_flags_supplier.bzl:28:21: rule() got unexpected keyword argument 'incompatible_use_toolchain_transition'
ERROR: While resolving toolchains for target //mediapipe/examples/desktop/hand_tracking:hand_tracking_cpu: com.google.devtools.build.lib.packages.BuildFileContainsErrorsException: error loading package '@bazel_tools//tools/cpp': in /home/dmitry/.cache/bazel/_bazel_dmitry/870728c32b519bd8ea9ab1059ef39614/external/rules_cc/cc/defs.bzl: Extension file 'cc/private/rules_impl/cc_flags_supplier.bzl' has errors
ERROR: Analysis of target '//mediapipe/examples/desktop/hand_tracking:hand_tracking_cpu' failed; build aborted: com.google.devtools.build.lib.packages.BuildFileContainsErrorsException: error loading package '@bazel_tools//tools/cpp': in /home/dmitry/.cache/bazel/_bazel_dmitry/870728c32b519bd8ea9ab1059ef39614/external/rules_cc/cc/defs.bzl: Extension file 'cc/private/rules_impl/cc_flags_supplier.bzl' has errors
INFO: Elapsed time: 12,845s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (2 packages loaded, 0 targe\
ts configured)

Answer 1

I came across the same error and the option incompatible_use_toolchain_transition doesn't seem to be supported in bazel version 3.0.0.

Try updating your bazel following their manual.

On more thing, the latest 3.5 version of bazel seem to have another issue. So consider getting 3.4 version or apply the workaround in the Github issue.