When testing KNN, always this error, ask for help you have encountered similar situations, how to solve.
D:\conda\envs\3D\python.exe D:\M3DM-main\version.py
PyTorch version: 1.8.0+cu111
CUDA available: True
CUDA version: 11.1
torchvision 0.9.0+cu111
ninja.version 1.11.1
CUDA available: True
CUDA version: 11.1
PyTorch version: 1.8.0+cu111
Torchvision version: 1.8.0+cu111
setuptools 60.2.0
Traceback (most recent call last):
File "D:\conda\envs\3D\lib\site-packages\torch\utils\cpp_extension.py", line 1667, in _run_ninja_build
subprocess.run(
File "D:\conda\envs\3D\lib\subprocess.py", line 516, in run
raise CalledProcessError(retcode, process.args,
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 "D:\M3DM-main\version.py", line 19, in
import knn_cuda
File "D:\conda\envs\3D\lib\site-packages\knn_cuda_init_.py", line 38, in
knn = load_cpp_ext("knn")
File "D:\conda\envs\3D\lib\site-packages\knn_cuda_init.py", line 26, in load_cpp_ext
ext = load(
File "D:\conda\envs\3D\lib\site-packages\torch\utils\cpp_extension.py", line 1079, in load
return _jit_compile(
File "D:\conda\envs\3D\lib\site-packages\torch\utils\cpp_extension.py", line 1292, in _jit_compile
_write_ninja_file_and_build_library(
File "D:\conda\envs\3D\lib\site-packages\torch\utils\cpp_extension.py", line 1404, in _write_ninja_file_and_build_library
_run_ninja_build(
File "D:\conda\envs\3D\lib\site-packages\torch\utils\cpp_extension.py", line 1683, in _run_ninja_build
raise RuntimeError(message) from e
RuntimeError: Error building extension 'knn': [1/1] "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30133\bin\Hostx64\x64/link.exe" knn.o knn.cuda.o /nologo /DLL c10.lib c10_cuda.lib torch_cpu.lib torch_cuda_cu.lib -INCLUDE:?searchsorted_cuda@native@at@@ya?AVTensor@2@AEBV32@0_N1@Z torch_cuda_cpp.lib -INCLUDE:?warp_size@cuda@at@@yahxz torch.lib /LIBPATH:D:\conda\envs\3D\lib\site-packages\torch\lib torch_python.lib /LIBPATH:D:\conda\envs\3D\libs "/LIBPATH:C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.3\lib/x64" cudart.lib /out:knn.pyd
FAILED: knn.pyd
"C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30133\bin\Hostx64\x64/link.exe" knn.o knn.cuda.o /nologo /DLL c10.lib c10_cuda.lib torch_cpu.lib torch_cuda_cu.lib -INCLUDE:?searchsorted_cuda@native@at@@ya?AVTensor@2@AEBV32@0_N1@Z torch_cuda_cpp.lib -INCLUDE:?warp_size@cuda@at@@yahxz torch.lib /LIBPATH:D:\conda\envs\3D\lib\site-packages\torch\lib torch_python.lib /LIBPATH:D:\conda\envs\3D\libs "/LIBPATH:C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.3\lib/x64" cudart.lib /out:knn.pyd
正在创建库 knn.lib 和对象 knn.exp
knn.o : error LNK2019: 无法解析的外部符号 "__declspec(dllimport) char const * __cdecl c10::detail::torchCheckMsgImpl(char const *)" (_imp?torchCheckMsgImpl@detail@c10@@YAPEBDPEBD@Z)，函数 "public: void __cdecl c10::ivalue::Object::unsafeRemoveSlot(unsigned __int64)" (?unsafeRemoveSlot@Object@ivalue@c10@@QEAAX_K@Z) 中引用了该符号
knn.o : error LNK2019: 无法解析的外部符号 "__declspec(dllimport) char const * __cdecl c10::detail::torchCheckMsgImpl(char const *,char const *)" (_imp?torchCheckMsgImpl@detail@c10@@YAPEBDPEBD0@Z)，函数 "public: void __cdecl c10::ivalue::Future::markCompleted(struct c10::IValue,class c10::optional<class std::vector<class std::reference_wrapper,class std::allocator<class std::reference_wrapper > > >)" (?markCompleted@Future@ivalue@c10@@QEAAXUIValue@3@V?$optional@V?$vector@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@v?$allocator@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@@2@@std@@@3@@z) 中引用了该符号
knn.o : error LNK2019: 无法解析的外部符号 "__declspec(dllimport) void __cdecl c10::detail::torchInternalAssertFail(char const *,char const *,unsigned int,char const *,char const *)" (_imp?torchInternalAssertFail@detail@c10@@YAXPEBD0I00@Z)，函数 "public: __cdecl std::_Func_impl_no_alloc<class <lambda_b78dc8f7805f29b232495c7b8c891ef4>,void,struct c10::ivalue::Future &>::_Func_impl_no_alloc<class <lambda_b78dc8f7805f29b232495c7b8c891ef4>,void,struct c10::ivalue::Future &><class <lambda_b78dc8f7805f29b232495c7b8c891ef4> const &,0>(class <lambda_b78dc8f7805f29b232495c7b8c891ef4> const &)" (??$?0AEBV<lambda_b78dc8f7805f29b232495c7b8c891ef4>@@$0A@@?$_Func_impl_no_alloc@V<lambda_b78dc8f7805f29b232495c7b8c891ef4>@@XAEAUFuture@ivalue@c10@@@std@@qeaa@AEBV<lambda_b78dc8f7805f29b232495c7b8c891ef4>@@@z) 中引用了该符号
knn.o : error LNK2019: 无法解析的外部符号 "__declspec(dllimport) void __cdecl c10::detail::torchInternalAssertFail(char const *,char const *,unsigned int,char const *,struct c10::detail::CompileTimeEmptyString)" (_imp?torchInternalAssertFail@detail@c10@@YAXPEBD0I0UCompileTimeEmptyString@12@@z)，函数 "public: __cdecl c10::impl::InlineMultiStreamGuard::InlineMultiStreamGuard(class c10::ArrayRef)" (??0?$InlineMultiStreamGuard@VVirtualGuardImpl@impl@c10@@@impl@c10@@qeaa@V?$ArrayRef@VStream@c10@@@2@@z) 中引用了该符号
knn.o : error LNK2019: 无法解析的外部符号 "private: static class std::vector<class std::reference_wrapper,class std::allocator<class std::reference_wrapper > > __cdecl c10::ivalue::Future::extractDataPtrs(struct c10::IValue const &)" (?extractDataPtrs@Future@ivalue@c10@@ca?AV?$vector@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@v?$allocator@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@@2@@std@@AEBUIValue@3@@z)，函数 "public: void __cdecl c10::ivalue::Future::markCompleted(struct c10::IValue,class c10::optional<class std::vector<class std::reference_wrapper,class std::allocator<class std::reference_wrapper > > >)" (?markCompleted@Future@ivalue@c10@@QEAAXUIValue@3@V?$optional@V?$vector@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@v?$allocator@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@@2@@std@@@3@@z) 中引用了该符号
knn.o : error LNK2019: 无法解析的外部符号 "public: long * __cdecl at::Tensor::data_ptr(void)const " (??$data_ptr@J@Tensor@at@@QEBAPEAJXZ)，函数 "public: long * __cdecl at::Tensor::data(void)const " (??$data@J@Tensor@at@@QEBAPEAJXZ) 中引用了该符号
knn.pyd : fatal error LNK1120: 6 个无法解析的外部命令
ninja: build stopped: subcommand failed.
Process finished with exit code 1
When testing KNN, always this error, ask for help you have encountered similar situations, how to solve.
D:\conda\envs\3D\python.exe D:\M3DM-main\version.py
PyTorch version: 1.8.0+cu111
CUDA available: True
CUDA version: 11.1
torchvision 0.9.0+cu111
ninja.version 1.11.1
CUDA available: True
CUDA version: 11.1
PyTorch version: 1.8.0+cu111
Torchvision version: 1.8.0+cu111
setuptools 60.2.0
Traceback (most recent call last):
File "D:\conda\envs\3D\lib\site-packages\torch\utils\cpp_extension.py", line 1667, in _run_ninja_build
subprocess.run(
File "D:\conda\envs\3D\lib\subprocess.py", line 516, in run
raise CalledProcessError(retcode, process.args,
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 "D:\M3DM-main\version.py", line 19, in
import knn_cuda
File "D:\conda\envs\3D\lib\site-packages\knn_cuda_init_.py", line 38, in
knn = load_cpp_ext("knn")
File "D:\conda\envs\3D\lib\site-packages\knn_cuda_init.py", line 26, in load_cpp_ext
ext = load(
File "D:\conda\envs\3D\lib\site-packages\torch\utils\cpp_extension.py", line 1079, in load
return _jit_compile(
File "D:\conda\envs\3D\lib\site-packages\torch\utils\cpp_extension.py", line 1292, in _jit_compile
_write_ninja_file_and_build_library(
File "D:\conda\envs\3D\lib\site-packages\torch\utils\cpp_extension.py", line 1404, in _write_ninja_file_and_build_library
_run_ninja_build(
File "D:\conda\envs\3D\lib\site-packages\torch\utils\cpp_extension.py", line 1683, in _run_ninja_build
raise RuntimeError(message) from e
RuntimeError: Error building extension 'knn': [1/1] "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30133\bin\Hostx64\x64/link.exe" knn.o knn.cuda.o /nologo /DLL c10.lib c10_cuda.lib torch_cpu.lib torch_cuda_cu.lib -INCLUDE:?searchsorted_cuda@native@at@@ya?AVTensor@2@AEBV32@0_N1@Z torch_cuda_cpp.lib -INCLUDE:?warp_size@cuda@at@@yahxz torch.lib /LIBPATH:D:\conda\envs\3D\lib\site-packages\torch\lib torch_python.lib /LIBPATH:D:\conda\envs\3D\libs "/LIBPATH:C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.3\lib/x64" cudart.lib /out:knn.pyd
FAILED: knn.pyd
"C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30133\bin\Hostx64\x64/link.exe" knn.o knn.cuda.o /nologo /DLL c10.lib c10_cuda.lib torch_cpu.lib torch_cuda_cu.lib -INCLUDE:?searchsorted_cuda@native@at@@ya?AVTensor@2@AEBV32@0_N1@Z torch_cuda_cpp.lib -INCLUDE:?warp_size@cuda@at@@yahxz torch.lib /LIBPATH:D:\conda\envs\3D\lib\site-packages\torch\lib torch_python.lib /LIBPATH:D:\conda\envs\3D\libs "/LIBPATH:C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.3\lib/x64" cudart.lib /out:knn.pyd
正在创建库 knn.lib 和对象 knn.exp
knn.o : error LNK2019: 无法解析的外部符号 "__declspec(dllimport) char const * __cdecl c10::detail::torchCheckMsgImpl(char const *)" (_imp?torchCheckMsgImpl@detail@c10@@YAPEBDPEBD@Z)，函数 "public: void __cdecl c10::ivalue::Object::unsafeRemoveSlot(unsigned __int64)" (?unsafeRemoveSlot@Object@ivalue@c10@@QEAAX_K@Z) 中引用了该符号
knn.o : error LNK2019: 无法解析的外部符号 "__declspec(dllimport) char const * __cdecl c10::detail::torchCheckMsgImpl(char const *,char const *)" (_imp?torchCheckMsgImpl@detail@c10@@YAPEBDPEBD0@Z)，函数 "public: void __cdecl c10::ivalue::Future::markCompleted(struct c10::IValue,class c10::optional<class std::vector<class std::reference_wrapper,class std::allocator<class std::reference_wrapper > > >)" (?markCompleted@Future@ivalue@c10@@QEAAXUIValue@3@V?$optional@V?$vector@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@v?$allocator@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@@2@@std@@@3@@z) 中引用了该符号
knn.o : error LNK2019: 无法解析的外部符号 "__declspec(dllimport) void __cdecl c10::detail::torchInternalAssertFail(char const *,char const *,unsigned int,char const *,char const *)" (_imp?torchInternalAssertFail@detail@c10@@YAXPEBD0I00@Z)，函数 "public: __cdecl std::_Func_impl_no_alloc<class <lambda_b78dc8f7805f29b232495c7b8c891ef4>,void,struct c10::ivalue::Future &>::_Func_impl_no_alloc<class <lambda_b78dc8f7805f29b232495c7b8c891ef4>,void,struct c10::ivalue::Future &><class <lambda_b78dc8f7805f29b232495c7b8c891ef4> const &,0>(class <lambda_b78dc8f7805f29b232495c7b8c891ef4> const &)" (??$?0AEBV<lambda_b78dc8f7805f29b232495c7b8c891ef4>@@$0A@@?$_Func_impl_no_alloc@V<lambda_b78dc8f7805f29b232495c7b8c891ef4>@@XAEAUFuture@ivalue@c10@@@std@@qeaa@AEBV<lambda_b78dc8f7805f29b232495c7b8c891ef4>@@@z) 中引用了该符号
knn.o : error LNK2019: 无法解析的外部符号 "__declspec(dllimport) void __cdecl c10::detail::torchInternalAssertFail(char const *,char const *,unsigned int,char const *,struct c10::detail::CompileTimeEmptyString)" (_imp?torchInternalAssertFail@detail@c10@@YAXPEBD0I0UCompileTimeEmptyString@12@@z)，函数 "public: __cdecl c10::impl::InlineMultiStreamGuard::InlineMultiStreamGuard(class c10::ArrayRef)" (??0?$InlineMultiStreamGuard@VVirtualGuardImpl@impl@c10@@@impl@c10@@qeaa@V?$ArrayRef@VStream@c10@@@2@@z) 中引用了该符号
knn.o : error LNK2019: 无法解析的外部符号 "private: static class std::vector<class std::reference_wrapper,class std::allocator<class std::reference_wrapper > > __cdecl c10::ivalue::Future::extractDataPtrs(struct c10::IValue const &)" (?extractDataPtrs@Future@ivalue@c10@@ca?AV?$vector@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@v?$allocator@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@@2@@std@@AEBUIValue@3@@z)，函数 "public: void __cdecl c10::ivalue::Future::markCompleted(struct c10::IValue,class c10::optional<class std::vector<class std::reference_wrapper,class std::allocator<class std::reference_wrapper > > >)" (?markCompleted@Future@ivalue@c10@@QEAAXUIValue@3@V?$optional@V?$vector@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@v?$allocator@V?$reference_wrapper@$$CBVDataPtr@c10@@@std@@@2@@std@@@3@@z) 中引用了该符号
knn.o : error LNK2019: 无法解析的外部符号 "public: long * __cdecl at::Tensor::data_ptr(void)const " (??$data_ptr@J@Tensor@at@@QEBAPEAJXZ)，函数 "public: long * __cdecl at::Tensor::data(void)const " (??$data@J@Tensor@at@@QEBAPEAJXZ) 中引用了该符号
knn.pyd : fatal error LNK1120: 6 个无法解析的外部命令
ninja: build stopped: subcommand failed.
Process finished with exit code 1