subprocess.CalledProcessError: Command '['ninja', '-v']' returned non-zero exit status 1

🐛 Bug

When I tried to install the vision from source I got the following error:

#include <libavcodec/avcodec.h>
          ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
ninja: build stopped: subcommand failed.
Traceback (most recent call last):
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/torch/utils/cpp_extension.py", line 1510, in _run_ninja_build
    env=env)
  File "/home/ahmad/miniconda3/lib/python3.7/subprocess.py", line 512, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['ninja', '-v']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "setup.py", line 255, in <module>
    'clean': clean,
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/setuptools/__init__.py", line 161, in setup
    return distutils.core.setup(**attrs)
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/dist.py", line 966, in run_commands
    self.run_command(cmd)
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/dist.py", line 985, in run_command
    cmd_obj.run()
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/setuptools/command/install.py", line 67, in run
    self.do_egg_install()
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/setuptools/command/install.py", line 109, in do_egg_install
    self.run_command('bdist_egg')
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/dist.py", line 985, in run_command
    cmd_obj.run()
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/setuptools/command/bdist_egg.py", line 173, in run
    cmd = self.call_command('install_lib', warn_dir=0)
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/setuptools/command/bdist_egg.py", line 159, in call_command
    self.run_command(cmdname)
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/dist.py", line 985, in run_command
    cmd_obj.run()
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/setuptools/command/install_lib.py", line 11, in run
    self.build()
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/command/install_lib.py", line 107, in build
    self.run_command('build_ext')
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/dist.py", line 985, in run_command
    cmd_obj.run()
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/setuptools/command/build_ext.py", line 87, in run
    _build_ext.run(self)
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/command/build_ext.py", line 340, in run
    self.build_extensions()
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/torch/utils/cpp_extension.py", line 644, in build_extensions
    build_ext.build_extensions(self)
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/command/build_ext.py", line 449, in build_extensions
    self._build_extensions_serial()
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/command/build_ext.py", line 474, in _build_extensions_serial
    self.build_extension(ext)
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/setuptools/command/build_ext.py", line 208, in build_extension
    _build_ext.build_extension(self, ext)
  File "/home/ahmad/miniconda3/lib/python3.7/distutils/command/build_ext.py", line 534, in build_extension
    depends=ext.depends)
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/torch/utils/cpp_extension.py", line 473, in unix_wrap_ninja_compile
    with_cuda=with_cuda)
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/torch/utils/cpp_extension.py", line 1228, in _write_ninja_file_and_compile_objects
    error_prefix='Error compiling objects for extension')
  File "/home/ahmad/miniconda3/lib/python3.7/site-packages/torch/utils/cpp_extension.py", line 1524, in _run_ninja_build
    raise RuntimeError(message)
RuntimeError: Error compiling objects for extension

** Steps to reproduce **

Steps to reproduce the behavior:

1. Installing Pytorch from source (with cuda 10.2, python 3.7)
2. Cloning vision
3. python setup.py install

Environment

OS: Ubuntu 20.04 LTS
GCC version: (Ubuntu 8.4.0-3ubuntu2) 8.4.0
CMake version: version 3.14.0

Python version: 3.7
Is CUDA available: Yes
CUDA runtime version: 10.2.89
GPU models and configuration: GPU 0: GeForce GT 740M
Nvidia driver version: 440.33.01
cuDNN version: Could not collect

Versions of relevant libraries:
[pip3] numpy==1.18.5
[pip3] torch==1.7.0a0+502ec8f
[conda] blas 1.0 mkl
[conda] cudatoolkit 10.0.130 0
[conda] magma-cuda102 2.5.2 1 pytorch
[conda] mkl 2020.1 217
[conda] mkl-include 2020.1 217
[conda] mkl-service 2.3.0 py37he904b0f_0
[conda] mkl_fft 1.1.0 py37h23d657b_0
[conda] mkl_random 1.1.1 py37h0573a6f_0
[conda] numpy 1.18.5 py37ha1c710e_0
[conda] numpy-base 1.18.5 py37hde5b4d6_0
[conda] torch 1.7.0a0+502ec8f pypi_0 pypi

Start with setup.py and the torch.utils.cpp_extension build path shown in the traceback, then reproduce the source installation with the listed Python, PyTorch, CUDA, and Ubuntu versions. Trace why the vision extension cannot find libavcodec/avcodec.h; done means the documented source-install command completes without the ninja compilation error.