Which gcc version should be used?

[sbnsl]

Hi, running build_toolbox.sh, I have the following issue with ubuntu 16.04, cuda 10.1 ( and cuda 9.0) and gcc 5.5.0.

Add -gencode to match all the GPU architectures you have.
Check 'https://en.wikipedia.org/wiki/CUDA#GPUs_supported' for list of architecture.
Check 'http://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html' for GPU compilation based on architecture.
nvcc -c -o calc_prob_kernel.cu.o calc_prob_kernel.cu -x cu -Xcompiler -fPIC -I /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include -I /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/TH -I /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/THC -I /home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob/calc_prob/src -gencode arch=compute_30,code=sm_30 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_61,code=sm_61
In file included from /usr/include/c++/5/type_traits:35:0,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/ATen/optional.h:19,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/ATen/Error.h:4,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/ATen/Allocator.h:6,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/TH/THAllocator.h:6,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/THC/THCGeneral.h:5,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/THC/THC.h:4,
from calc_prob_kernel.cu:1:
/usr/include/c++/5/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
#error This file requires compiler and library support
^
/home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob
generating /tmp/tmp0eb6_ls3/_calc_prob_lib.c
setting the current directory to '/tmp/tmp0eb6_ls3'
running build_ext
building '_calc_prob_lib' extension
creating home
creating home/s
creating home/s/Downloads
creating home/s/Downloads/GenRe-ShapeHD-master
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob/calc_prob
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob/calc_prob/src
gcc -pthread -B /home/s/anaconda/envs/shaperecon/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -DWITH_CUDA=True -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/TH -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/THC -I/usr/local/cuda/include -I/home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob/calc_prob/src -I/home/s/anaconda/envs/shaperecon/include/python3.6m -c _calc_prob_lib.c -o ./_calc_prob_lib.o -std=c99
gcc -pthread -B /home/s/anaconda/envs/shaperecon/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -DWITH_CUDA=True -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/TH -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/THC -I/usr/local/cuda/include -I/home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob/calc_prob/src -I/home/s/anaconda/envs/shaperecon/include/python3.6m -c /home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob/calc_prob/src/calc_prob.c -o ./home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob/calc_prob/src/calc_prob.o -std=c99
gcc -pthread -shared -B /home/s/anaconda/envs/shaperecon/compiler_compat -L/home/s/anaconda/envs/shaperecon/lib -Wl,-rpath=/home/s/anaconda/envs/shaperecon/lib -Wl,--no-as-needed -Wl,--sysroot=/ ./_calc_prob_lib.o ./home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob/calc_prob/src/calc_prob.o /home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob/calc_prob/src/calc_prob_kernel.cu.o -o ./_calc_prob_lib.so
gcc: error: /home/s/Downloads/GenRe-ShapeHD-master/toolbox/calc_prob/calc_prob/src/calc_prob_kernel.cu.o: No such file or directory
Traceback (most recent call last):
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/unixccompiler.py", line 197, in link
self.spawn(linker + ld_args)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/ccompiler.py", line 909, in spawn
spawn(cmd, dry_run=self.dry_run)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/spawn.py", line 36, in spawn
_spawn_posix(cmd, search_path, dry_run=dry_run)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/spawn.py", line 159, in _spawn_posix
% (cmd, exit_status))
distutils.errors.DistutilsExecError: command 'gcc' failed with exit status 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/cffi/ffiplatform.py", line 51, in _build
dist.run_command('build_ext')
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/command/build_ext.py", line 339, in run
self.build_extensions()
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/command/build_ext.py", line 448, in build_extensions
self._build_extensions_serial()
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/command/build_ext.py", line 473, in _build_extensions_serial
self.build_extension(ext)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/command/build_ext.py", line 558, in build_extension
target_lang=language)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/ccompiler.py", line 717, in link_shared_object
extra_preargs, extra_postargs, build_temp, target_lang)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/unixccompiler.py", line 199, in link
raise LinkError(msg)
distutils.errors.LinkError: command 'gcc' failed with exit status 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "build.py", line 42, in
ext.build()
File "/home/s/anaconda/envs/shaperecon/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/s/anaconda/envs/shaperecon/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/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/cffi/api.py", line 727, in compile
compiler_verbose=verbose, debug=debug, **kwds)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/cffi/recompiler.py", line 1536, in recompile
compiler_verbose, debug)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/cffi/ffiplatform.py", line 22, in compile
outputfilename = _build(tmpdir, ext, compiler_verbose, debug)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/cffi/ffiplatform.py", line 58, in _build
raise VerificationError('%s: %s' % (e.class.name, e))
cffi.VerificationError: LinkError: command 'gcc' failed with exit status 1
Add -gencode to match all the GPU architectures you have.
Check 'https://en.wikipedia.org/wiki/CUDA#GPUs_supported' for list of architecture.
Check 'http://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html' for GPU compilation based on architecture.
nvcc -c -o nnd_cuda.cu.o nnd_cuda.cu -x cu -Xcompiler -fPIC -I /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/TH -I /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/THC -I /home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance/src -I /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include -gencode arch=compute_30,code=sm_30 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_61,code=sm_61
Including CUDA code.
/home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance
generating /tmp/tmpfm0jxz10/_my_lib.c
setting the current directory to '/tmp/tmpfm0jxz10'
running build_ext
building '_my_lib' extension
creating home
creating home/s
creating home/s/Downloads
creating home/s/Downloads/GenRe-ShapeHD-master
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance/src
gcc -pthread -B /home/s/anaconda/envs/shaperecon/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -DWITH_CUDA -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/TH -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/THC -I/usr/local/cuda/include -I/home/s/anaconda/envs/shaperecon/include/python3.6m -c _my_lib.c -o ./_my_lib.o -std=c99
gcc -pthread -B /home/s/anaconda/envs/shaperecon/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -DWITH_CUDA -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/TH -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/THC -I/usr/local/cuda/include -I/home/s/anaconda/envs/shaperecon/include/python3.6m -c /home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance/src/my_lib.c -o ./home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance/src/my_lib.o -std=c99
gcc -pthread -B /home/s/anaconda/envs/shaperecon/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -DWITH_CUDA -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/TH -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/THC -I/usr/local/cuda/include -I/home/s/anaconda/envs/shaperecon/include/python3.6m -c /home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance/src/my_lib_cuda.c -o ./home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance/src/my_lib_cuda.o -std=c99
gcc -pthread -shared -B /home/s/anaconda/envs/shaperecon/compiler_compat -L/home/s/anaconda/envs/shaperecon/lib -Wl,-rpath=/home/s/anaconda/envs/shaperecon/lib -Wl,--no-as-needed -Wl,--sysroot=/ ./_my_lib.o ./home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance/src/my_lib.o ./home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance/src/my_lib_cuda.o /home/s/Downloads/GenRe-ShapeHD-master/toolbox/nndistance/src/nnd_cuda.cu.o -o ./_my_lib.so
Add -gencode to match all the GPU architectures you have.
Check 'https://en.wikipedia.org/wiki/CUDA#GPUs_supported' for list of architecture.
Check 'http://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html' for GPU compilation based on architecture.
nvcc -c -o back_projection_kernel.cu.o back_projection_kernel.cu -x cu -Xcompiler -fPIC -I /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/TH -I /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include -I /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/THC -I /home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp/cam_bp/src -I /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include -gencode arch=compute_30,code=sm_30 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_61,code=sm_61
In file included from /usr/include/c++/5/type_traits:35:0,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/ATen/optional.h:19,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/ATen/Error.h:4,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/ATen/Allocator.h:6,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/TH/THAllocator.h:6,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/THC/THCGeneral.h:5,
from /home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/lib/include/THC/THC.h:4,
from back_projection_kernel.cu:1:
/usr/include/c++/5/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
#error This file requires compiler and library support
^
/home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp
/home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp
generating /tmp/tmphztmwi5i/_cam_bp_lib.c
setting the current directory to '/tmp/tmphztmwi5i'
running build_ext
building '_cam_bp_lib' extension
creating home
creating home/s
creating home/s/Downloads
creating home/s/Downloads/GenRe-ShapeHD-master
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp/cam_bp
creating home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp/cam_bp/src
gcc -pthread -B /home/s/anaconda/envs/shaperecon/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -DWITH_CUDA=True -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/TH -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/THC -I/usr/local/cuda/include -I/home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp/cam_bp/src -I/home/s/anaconda/envs/shaperecon/include/python3.6m -c _cam_bp_lib.c -o ./_cam_bp_lib.o -std=c99
gcc -pthread -B /home/s/anaconda/envs/shaperecon/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -DWITH_CUDA=True -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/TH -I/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/torch/utils/ffi/../../lib/include/THC -I/usr/local/cuda/include -I/home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp/cam_bp/src -I/home/s/anaconda/envs/shaperecon/include/python3.6m -c /home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp/cam_bp/src/back_projection.c -o ./home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp/cam_bp/src/back_projection.o -std=c99
gcc -pthread -shared -B /home/s/anaconda/envs/shaperecon/compiler_compat -L/home/s/anaconda/envs/shaperecon/lib -Wl,-rpath=/home/s/anaconda/envs/shaperecon/lib -Wl,--no-as-needed -Wl,--sysroot=/ ./_cam_bp_lib.o ./home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp/cam_bp/src/back_projection.o /home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp/cam_bp/src/back_projection_kernel.cu.o -o ./_cam_bp_lib.so
gcc: error: /home/s/Downloads/GenRe-ShapeHD-master/toolbox/cam_bp/cam_bp/src/back_projection_kernel.cu.o: No such file or directory
Traceback (most recent call last):
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/unixccompiler.py", line 197, in link
self.spawn(linker + ld_args)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/ccompiler.py", line 909, in spawn
spawn(cmd, dry_run=self.dry_run)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/spawn.py", line 36, in spawn
_spawn_posix(cmd, search_path, dry_run=dry_run)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/spawn.py", line 159, in _spawn_posix
% (cmd, exit_status))
distutils.errors.DistutilsExecError: command 'gcc' failed with exit status 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/cffi/ffiplatform.py", line 51, in _build
dist.run_command('build_ext')
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/command/build_ext.py", line 339, in run
self.build_extensions()
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/command/build_ext.py", line 448, in build_extensions
self._build_extensions_serial()
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/command/build_ext.py", line 473, in _build_extensions_serial
self.build_extension(ext)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/command/build_ext.py", line 558, in build_extension
target_lang=language)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/ccompiler.py", line 717, in link_shared_object
extra_preargs, extra_postargs, build_temp, target_lang)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/distutils/unixccompiler.py", line 199, in link
raise LinkError(msg)
distutils.errors.LinkError: command 'gcc' failed with exit status 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "build.py", line 43, in
ffi.build()
File "/home/s/anaconda/envs/shaperecon/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/s/anaconda/envs/shaperecon/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/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/cffi/api.py", line 727, in compile
compiler_verbose=verbose, debug=debug, **kwds)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/cffi/recompiler.py", line 1536, in recompile
compiler_verbose, debug)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/cffi/ffiplatform.py", line 22, in compile
outputfilename = _build(tmpdir, ext, compiler_verbose, debug)
File "/home/s/anaconda/envs/shaperecon/lib/python3.6/site-packages/cffi/ffiplatform.py", line 58, in _build
raise VerificationError('%s: %s' % (e.class.name, e))
cffi.VerificationError: LinkError: command 'gcc' failed with exit status 1

[buxiangzhiren]

i have the same issue，have you solved it?

[korhanpolat]

adding -std=c++11 flag to nvcc compile command in setup.sh files seems to work for me.

more specifically, go to all three setup.sh files in

toolbox/calc_prob
toolbox/nndistance  
toolbox/cam_bp  

and add the flag so that the cmd variable looks like cmd="nvcc -c -std=c++11....

[tiexuedanxin]

adding -std=c++11 flag to nvcc compile command in setup.sh files seems to work for me.

more specifically, go to all three setup.sh files in

toolbox/calc_prob
toolbox/nndistance  
toolbox/cam_bp  

and add the flag so that the cmd variable looks like cmd="nvcc -c -std=c++11....

hello, I modify the .sh as you say, but I get the error "gcc: error:GenRe-ShapeHD/toolbox/calc_prob/calc_prob/src/calc_prob_kernel.cu.o: No such file or directory" "cffi.VerificationError: LinkError: command 'gcc' failed with exit status 1", could you help me, thank you very much.

[ztzhang]

hi, I think that sounds like a pytorch version issue. Newer version of pytorch does not support the cffi interface anymore.