Build error

[SeanChenxy]

Hi:
When I ran CC=g++ python build.py, I got errors of cffi.error.VerificationError: CompileError: command 'g++' failed with exit status 1. Could you give me some suggestions? Thank you. @1zb
The error details are as follows:

Traceback (most recent call last):
  File "/home/sean/anaconda3/lib/python3.6/distutils/unixccompiler.py", line 118, in _compile
    extra_postargs)
  File "/home/sean/anaconda3/lib/python3.6/distutils/ccompiler.py", line 909, in spawn
    spawn(cmd, dry_run=self.dry_run)
  File "/home/sean/anaconda3/lib/python3.6/distutils/spawn.py", line 36, in spawn
    _spawn_posix(cmd, search_path, dry_run=dry_run)
  File "/home/sean/anaconda3/lib/python3.6/distutils/spawn.py", line 159, in _spawn_posix
    % (cmd, exit_status))
distutils.errors.DistutilsExecError: command 'g++' failed with exit status 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/sean/anaconda3/lib/python3.6/site-packages/cffi/ffiplatform.py", line 51, in _build
    dist.run_command('build_ext')
  File "/home/sean/anaconda3/lib/python3.6/distutils/dist.py", line 974, in run_command
    cmd_obj.run()
  File "/home/sean/anaconda3/lib/python3.6/distutils/command/build_ext.py", line 339, in run
    self.build_extensions()
  File "/home/sean/anaconda3/lib/python3.6/distutils/command/build_ext.py", line 448, in build_extensions
    self._build_extensions_serial()
  File "/home/sean/anaconda3/lib/python3.6/distutils/command/build_ext.py", line 473, in _build_extensions_serial
    self.build_extension(ext)
  File "/home/sean/anaconda3/lib/python3.6/distutils/command/build_ext.py", line 533, in build_extension
    depends=ext.depends)
  File "/home/sean/anaconda3/lib/python3.6/distutils/ccompiler.py", line 574, in compile
    self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
  File "/home/sean/anaconda3/lib/python3.6/distutils/unixccompiler.py", line 120, in _compile
    raise CompileError(msg)
distutils.errors.CompileError: command 'g++' failed with exit status 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "build.py", line 36, in <module>
    ffi.build()
  File "/home/sean/anaconda3/lib/python3.6/site-packages/torch/utils/ffi/__init__.py", line 189, in build
    _build_extension(ffi, cffi_wrapper_name, target_dir, verbose)
  File "/home/sean/anaconda3/lib/python3.6/site-packages/torch/utils/ffi/__init__.py", line 111, in _build_extension
    outfile = ffi.compile(tmpdir=tmpdir, verbose=verbose, target=libname)
  File "/home/sean/anaconda3/lib/python3.6/site-packages/cffi/api.py", line 697, in compile
    compiler_verbose=verbose, debug=debug, **kwds)
  File "/home/sean/anaconda3/lib/python3.6/site-packages/cffi/recompiler.py", line 1520, in recompile
    compiler_verbose, debug)
  File "/home/sean/anaconda3/lib/python3.6/site-packages/cffi/ffiplatform.py", line 22, in compile
    outputfilename = _build(tmpdir, ext, compiler_verbose, debug)
  File "/home/sean/anaconda3/lib/python3.6/site-packages/cffi/ffiplatform.py", line 58, in _build
    raise VerificationError('%s: %s' % (e.__class__.__name__, e))
cffi.error.VerificationError: CompileError: command 'g++' failed with exit status 1

[jangho2001us]

@SeanChenxy I am trouble with the same error. Do you solve the issue?

[a13668349935]

i have the same error

[SeanChenxy]

I found this error is caused by Pytorch version. So, Pytorch 0.40 can work well.

[ZHUXUHAN]

yes, i used pytorch0.4.1,it would occur the same problem,so you can just pip install torch==0.4.0,it just can compile.