Error Running: Bazel about code_contests

[jtkeeling]

Thanks for reporting your issue. I notice you're on Ubuntu 16.04. I don't know what version of GCC you're using, but I believe the latest version provided with that release of Ubuntu is GCC-5.4, which was released in June 2016. This might be too old to compile the riegeli dependency.

Could you double check your GCC version with gcc --version and try compiling with a more recent version of GCC or Clang? You could do this either by installing a new version in your current VM, or by using a more recent version of Ubuntu.

[ayush1801]

@jtkeeling I am also facing a similar issue:

$ ~/Desktop/CodeGen/bazel run -c opt :print_names_and_sources ~/Desktop/CodeGen/dm-code_contests/code_contests_test.riegeli
Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_github_grpc_grpc' indicated that a canonical reproducible form can be obtained by modifying arguments commit = "96b73272eadc01afb5fb45b92b408c47e4387274", shallow_since = "1624063996 -0700" and dropping ["tag"]
DEBUG: Repository com_github_grpc_grpc instantiated at:
  C:/users/t-agrawala/desktop/codegen/code_contests/WORKSPACE:4:15: in <toplevel>
Repository rule git_repository defined at:
  C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/bazel_tools/tools/build_defs/repo/git.bzl:199:33: in <toplevel>
Analyzing: target //:print_names_and_sources (1 packages loaded, 0 targets configured)
Analyzing: target //:print_names_and_sources (32 packages loaded, 117 targets configured)
Analyzing: target //:print_names_and_sources (38 packages loaded, 177 targets configured)
Analyzing: target //:print_names_and_sources (38 packages loaded, 177 targets configured)
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments commit = "cc7b1b53234cd7a8f50d90ac3933b240dcf4cd97", shallow_since = "1641866895 -0800" and dropping ["tag"]
DEBUG: Repository com_google_protobuf instantiated at:
  C:/users/t-agrawala/desktop/codegen/code_contests/WORKSPACE:22:15: in <toplevel>
Repository rule git_repository defined at:
  C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/bazel_tools/tools/build_defs/repo/git.bzl:199:33: in <toplevel>
Analyzing: target //:print_names_and_sources (38 packages loaded, 177 targets configured)
DEBUG: Rule 'rules_python' indicated that a canonical reproducible form can be obtained by modifying arguments commit = "76ef44fdb8aaa8d5c607721ffe1b1cbf1e8f08dd", shallow_since = "1635214215 -0700" and dropping ["tag"]
DEBUG: Repository rules_python instantiated at:
  C:/users/t-agrawala/desktop/codegen/code_contests/WORKSPACE:14:15: in <toplevel>
Repository rule git_repository defined at:
  C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/bazel_tools/tools/build_defs/repo/git.bzl:199:33: in <toplevel>
INFO: Repository local_config_python instantiated at:
  C:/users/t-agrawala/desktop/codegen/code_contests/WORKSPACE:12:10: in <toplevel>
  C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/bazel/grpc_deps.bzl:414:21: in grpc_deps
  C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/bazel/grpc_python_deps.bzl:43:21: in grpc_python_deps
Repository rule python_configure defined at:
  C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/third_party/py/python_configure.bzl:365:35: in <toplevel>
ERROR: An error occurred during the fetch of repository 'local_config_python':
   Traceback (most recent call last):
        File "C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/third_party/py/python_configure.bzl", line 347, column 35, in _python_autoconf_impl
                _create_single_version_package(
        File "C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/third_party/py/python_configure.bzl", line 316, column 42, in _create_single_version_package
                python_include = _normalize_path(python_include)
Error: local variable 'python_include' is referenced before assignment.
ERROR: C:/users/t-agrawala/desktop/codegen/code_contests/WORKSPACE:12:10: fetching python_configure rule //external:local_config_python: Traceback (most recent call last):
        File "C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/third_party/py/python_configure.bzl", line 347, column 35, in _python_autoconf_impl
                _create_single_version_package(
        File "C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/third_party/py/python_configure.bzl", line 316, column 42, in _create_single_version_package
                python_include = _normalize_path(python_include)
Error: local variable 'python_include' is referenced before assignment.
ERROR: C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_google_riegeli/python/riegeli/records/BUILD:54:13: @com_google_riegeli//python/riegeli/records:record_position_cc depends on @local_config_python//:python_headers in repository @local_config_python which failed to fetch. no such package '@local_config_python//': local variable 'python_include' is referenced before assignment.
ERROR: Analysis of target '//:print_names_and_sources' failed; build aborted:
INFO: Elapsed time: 28.900s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (45 packages loaded, 186 targets configured)
ERROR: Build failed. Not running target
FAILED: Build did NOT complete successfully (45 packages loaded, 186 targets configured)

It would be really helpful if you could give me some insights about how to proceed from here.

[jtkeeling]

Hi ayush1801.

This is a distinct issue. You might want to raise a new issue.

But looking at https://github.com/grpc/grpc/blob/master/third_party/py/python_configure.bzl#L313, the error is that python_include is not set.

From reading the source code here, it looks like this will happen on Windows machines that do not have Python2 installed. Whilst Python2 is not actually a requirement of code_contests, this is happening in our indirect GRPC dependency over which we don't have much control.

I would recommend installing Python2 and seeing if this fixes your problem.

[ayush1801]

Hi @jtkeeling!
Thanks for the suggestion, however similar error is coming after installing python 2.7.

$ ~/Desktop/CodeGen/bazel run -c opt :print_names_and_sources ~/Desktop/CodeGen/dm-code_contests/code_contests_test.riegeli
Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Analyzing: target //:print_names_and_sources (1 packages loaded, 0 targets configured)
INFO: Repository local_config_python instantiated at:
  C:/users/t-agrawala/desktop/codegen/code_contests/WORKSPACE:12:10: in <toplevel>
  C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/bazel/grpc_deps.bzl:414:21: in grpc_deps
  C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/bazel/grpc_python_deps.bzl:43:21: in grpc_python_deps
Repository rule python_configure defined at:
  C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/third_party/py/python_configure.bzl:365:35: in <toplevel>
ERROR: An error occurred during the fetch of repository 'local_config_python':
   Traceback (most recent call last):
        File "C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/third_party/py/python_configure.bzl", line 347, column 35, in _python_autoconf_impl
                _create_single_version_package(
        File "C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/third_party/py/python_configure.bzl", line 316, column 42, in _create_single_version_package
                python_include = _normalize_path(python_include)
Error: local variable 'python_include' is referenced before assignment.
ERROR: C:/users/t-agrawala/desktop/codegen/code_contests/WORKSPACE:12:10: fetching python_configure rule //external:local_config_python: Traceback (most recent call last):
        File "C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/third_party/py/python_configure.bzl", line 347, column 35, in _python_autoconf_impl
                _create_single_version_package(
        File "C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_github_grpc_grpc/third_party/py/python_configure.bzl", line 316, column 42, in _create_single_version_package
                python_include = _normalize_path(python_include)
Error: local variable 'python_include' is referenced before assignment.
ERROR: C:/users/t-agrawala/_bazel_t-agrawala/2bxpaxyo/external/com_google_riegeli/python/riegeli/records/BUILD:54:13: @com_google_riegeli//python/riegeli/records:record_position_cc depends on @local_config_python//:python_headers in repository @local_config_python which failed to fetch. no such package '@local_config_python//': local variable 'python_include' is referenced before assignment.
ERROR: Analysis of target '//:print_names_and_sources' failed; build aborted:
INFO: Elapsed time: 7.217s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (50 packages loaded, 182 targets configured)
ERROR: Build failed. Not running target

Can you suggest any workaround for this issue or maybe another way to read the RIEGELI files?

[davidhchoi]

Sorry for the late reply. Can you try the instructions that worked for someone else here: #9 (comment) ?