Difficulty in compiling

[nandantumu]

When I try to run python setup.py develop, I get the following error:

ninja: build stopped: subcommand failed.
Traceback (most recent call last):
  File "/miniconda/envs/py36/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 1672, in _run_ninja_build
    env=env)
  File "/miniconda/envs/py36/lib/python3.6/subprocess.py", line 418, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['ninja', '-v']' returned non-zero exit status 1.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "setup.py", line 68, in <module>
    cmdclass={"build_ext": torch.utils.cpp_extension.BuildExtension},
  File "/miniconda/envs/py36/lib/python3.6/site-packages/setuptools/__init__.py", line 153, in setup
    return distutils.core.setup(**attrs)
  File "/miniconda/envs/py36/lib/python3.6/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/miniconda/envs/py36/lib/python3.6/distutils/dist.py", line 955, in run_commands
    self.run_command(cmd)
  File "/miniconda/envs/py36/lib/python3.6/distutils/dist.py", line 974, in run_command
    cmd_obj.run()
  File "/miniconda/envs/py36/lib/python3.6/distutils/command/build.py", line 135, in run
    self.run_command(cmd_name)
  File "/miniconda/envs/py36/lib/python3.6/distutils/cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "/miniconda/envs/py36/lib/python3.6/distutils/dist.py", line 974, in run_command
    cmd_obj.run()
  File "/miniconda/envs/py36/lib/python3.6/site-packages/setuptools/command/build_ext.py", line 79, in run
    _build_ext.run(self)
  File "/miniconda/envs/py36/lib/python3.6/site-packages/Cython/Distutils/old_build_ext.py", line 186, in run
    _build_ext.build_ext.run(self)
  File "/miniconda/envs/py36/lib/python3.6/distutils/command/build_ext.py", line 339, in run
    self.build_extensions()
  File "/miniconda/envs/py36/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 709, in build_extensions
    build_ext.build_extensions(self)
  File "/miniconda/envs/py36/lib/python3.6/site-packages/Cython/Distutils/old_build_ext.py", line 195, in build_extensions
    _build_ext.build_ext.build_extensions(self)
  File "/miniconda/envs/py36/lib/python3.6/distutils/command/build_ext.py", line 448, in build_extensions
    self._build_extensions_serial()
  File "/miniconda/envs/py36/lib/python3.6/distutils/command/build_ext.py", line 473, in _build_extensions_serial
    self.build_extension(ext)
  File "/miniconda/envs/py36/lib/python3.6/site-packages/setuptools/command/build_ext.py", line 196, in build_extension
    _build_ext.build_extension(self, ext)
  File "/miniconda/envs/py36/lib/python3.6/distutils/command/build_ext.py", line 533, in build_extension
    depends=ext.depends)
  File "/miniconda/envs/py36/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 539, in unix_wrap_ninja_compile
    with_cuda=with_cuda)
  File "/miniconda/envs/py36/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 1360, in _write_ninja_file_and_compile_objects
    error_prefix='Error compiling objects for extension')
  File "/miniconda/envs/py36/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 1682, in _run_ninja_build
    raise RuntimeError(message) from e
RuntimeError: Error compiling objects for extension

[dliu5812]

Hi there,

I am sorry that I have not met such compiling errors when setting up environments. I guess it might be something wrong with the PyTorch, or the Cuda in your environment. I tried to search this issue for you and hope the following post can help:

pytorch/pytorch#32694

facebookresearch/maskrcnn-benchmark#1242

Based on the above posts, you can also double-check the version of PyTorch and torchvision.

In addition, I suggest that you can refer to the official maskrcnn-benchmark repository for more detailed installation process.