I get RuntimeError: Error building extension 'enclib_cpu':

hi, I get this error, who can help me ? thanks!!!

Traceback (most recent call last):
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 946, in _build_extension_module
check=True)
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/subprocess.py", line 418, 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 "train_nullmax.py", line 17, in
import encoding.utils as utils
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/init.py", line 13, in
from . import nn, functions, dilated, parallel, utils, models, datasets
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/nn/init.py", line 12, in
from .encoding import *
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/nn/encoding.py", line 19, in
from ..functions import scaledL2, aggregate, pairwise_cosine
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/functions/init.py", line 2, in
from .encoding import *
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/functions/encoding.py", line 14, in
from .. import lib
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/init.py", line 12, in
], build_directory=cpu_path, verbose=False)
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 645, in load
is_python_module)
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 814, in _jit_compile
with_cuda=with_cuda)
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 863, in _write_ninja_file_and_build
_build_extension_module(name, build_directory, verbose)
File "/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 959, in build_extension_module
raise RuntimeError(message)
RuntimeError: Error building extension 'enclib_cpu': [1/3] c++ -MMD -MF roi_align_cpu.o.d -DTORCH_EXTENSION_NAME=enclib_cpu -DTORCH_API_INCLUDE_EXTENSION_H -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/torch/csrc/api/include -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/TH -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/THC -isystem /home/lpeng/anaconda3/envs/laneseg/include/python3.6m -D_GLIBCXX_USE_CXX11_ABI=0 -fPIC -std=c++11 -c /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp -o roi_align_cpu.o
FAILED: roi_align_cpu.o
c++ -MMD -MF roi_align_cpu.o.d -DTORCH_EXTENSION_NAME=enclib_cpu -DTORCH_API_INCLUDE_EXTENSION_H -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/torch/csrc/api/include -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/TH -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/THC -isystem /home/lpeng/anaconda3/envs/laneseg/include/python3.6m -D_GLIBCXX_USE_CXX11_ABI=0 -fPIC -std=c++11 -c /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp -o roi_align_cpu.o
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp: In function ‘at::Tensor ROIAlignForwardCPU(const at::Tensor&, const at::Tensor&, int64_t, int64_t, double, int64_t)’:
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:407:30: error: ‘struct at::Type’ has no member named ‘tensor’
auto output = input.type().tensor({num_rois, channels, pooled_height, pooled_width});
^
In file included from /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/ATen/ATen.h:9:0,
from /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:1:
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp: In lambda function:
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:425:27: error: expected primary-expression before ‘>’ token
output.data<scalar_t>());
^
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:425:29: error: expected primary-expression before ‘)’ token
output.data<scalar_t>());
^
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp: In lambda function:
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:425:27: error: expected primary-expression before ‘>’ token
output.data<scalar_t>());
^
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:425:29: error: expected primary-expression before ‘)’ token
output.data<scalar_t>());
^
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp: In function ‘at::Tensor ROIAlignBackwardCPU(const at::Tensor&, const at::Tensor&, int64_t, int64_t, int64_t, int64_t, int64_t, int64_t, double, int64_t)’:
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:454:37: error: ‘struct at::Type’ has no member named ‘tensor’
auto grad_in = bottom_rois.type().tensor({b_size, channels, height, width}).zero();
^
In file included from /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/ATen/ATen.h:9:0,
from /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:1:
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp: In lambda function:
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:470:28: error: expected primary-expression before ‘>’ token
grad_in.data<scalar_t>(),
^
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:470:30: error: expected primary-expression before ‘)’ token
grad_in.data<scalar_t>(),
^
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp: In lambda function:
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:470:28: error: expected primary-expression before ‘>’ token
grad_in.data<scalar_t>(),
^
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align_cpu.cpp:470:30: error: expected primary-expression before ‘)’ token
grad_in.data<scalar_t>(),
^
[2/3] c++ -MMD -MF roi_align.o.d -DTORCH_EXTENSION_NAME=enclib_cpu -DTORCH_API_INCLUDE_EXTENSION_H -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/torch/csrc/api/include -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/TH -isystem /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/THC -isystem /home/lpeng/anaconda3/envs/laneseg/include/python3.6m -D_GLIBCXX_USE_CXX11_ABI=0 -fPIC -std=c++11 -c /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align.cpp -o roi_align.o
In file included from /home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/encoding/lib/cpu/roi_align.cpp:1:0:
/home/lpeng/anaconda3/envs/laneseg/lib/python3.6/site-packages/torch/lib/include/torch/csrc/api/include/torch/torch.h:7:2: warning: #warning "Including torch/torch.h for C++ extensions is deprecated. Please include torch/extension.h" [-Wcpp]
#warning
^
ninja: build stopped: subcommand failed.

Start with encoding/lib/cpu/roi_align_cpu.cpp and roi_align.cpp, then inspect the torch.utils.cpp_extension build invoked while importing encoding in train_nullmax.py. Reproduce the ninja build and compare the extension's C++ API usage with the installed PyTorch version. Done means the enclib_cpu extension builds successfully and the training script imports encoding without this RuntimeError.