build python error

[C8504]

Hi Experts,

When I build python on main branch, I got below error message, could you please help me to resolve? thanks.

   "C:\or-tools\build_make\install.vcxproj" (default target) (1) ->
   "C:\or-tools\build_make\ALL_BUILD.vcxproj" (default target) (3) ->
   "C:\or-tools\build_make\python_package.vcxproj" (default target) (101) ->
   "C:\or-tools\build_make\Pyortools_proto.vcxproj" (default target) (104) ->
   (CustomBuild target) ->
     C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(241,5): error MSB8066: Custom build for 'C:\or-tools\build_make
   \CMakeFiles\5ccd2c9c83dec2f4a839c84a257672eb\bop_parameters_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\6cb39017a78a2907bc7dafc5b958c9ca\assignment_pb2.py.rule;C:\or-tools\build_m
   ake\CMakeFiles\6cb39017a78a2907bc7dafc5b958c9ca\routing_enums_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\6cb39017a78a2907bc7dafc5b958c9ca\routing_parameters_pb2.py.rule;C:\or-too
   ls\build_make\CMakeFiles\6cb39017a78a2907bc7dafc5b958c9ca\search_limit_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\6cb39017a78a2907bc7dafc5b958c9ca\search_stats_pb2.py.rule;C:\or-
   tools\build_make\CMakeFiles\6cb39017a78a2907bc7dafc5b958c9ca\solver_parameters_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\1014b45ee9333c6faec7ff107197d608\parameters_pb2.py.rule;
   C:\or-tools\build_make\CMakeFiles\d655198a4283f90eb21c297d7ebb8167\flow_problem_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\41a2462f6597ad9fc0080add51ae0db9\linear_solver_pb2.py.r
   ule;C:\or-tools\build_make\CMakeFiles\cca4450b59f06bb8ca2a680233bab48f\multiple_dimensions_bin_packing_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\cca4450b59f06bb8ca2a680233bab48f
   \vector_bin_packing_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\a176e8579ec23b56167be2a64a9f44a8\solve_log_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\a176e8579ec23b56167be2a64a
   9f44a8\solvers_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\ce0d0b16e1b3e763ef8579c1055818a1\boolean_problem_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\ce0d0b16e1b3e763ef8579c10
   55818a1\cp_model_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\ce0d0b16e1b3e763ef8579c1055818a1\cp_model_service_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\ce0d0b16e1b3e763ef8579
   c1055818a1\sat_parameters_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\b89ff7b3ac8e9ce643ccda7eda29c80a\course_scheduling_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\b89ff7b3ac8e
   9ce643ccda7eda29c80a\jobshop_scheduling_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\b89ff7b3ac8e9ce643ccda7eda29c80a\rcpsp_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\09f29eabc9
   a4fa6c362bcb527cd2202f\optional_boolean_pb2.py.rule;C:\or-tools\build_make\CMakeFiles\dcfceab16efa691335b8abefd9073677\Pyortools_proto.rule' exited with code 1. [C:\or-tools\build_m
   ake\Pyortools_proto.vcxproj]

164 Warning(s)
1 Error(s)

[Mizux]

Do you have other trace ? I guess the error was above.

Which build command did you use ?

[C8504]

I used below command.
tools\make.exe python

[C8504]

After I added \Python\Python38\Scripts to PATH, it works well now.