Setting Visual Studio for Pytorch C++

Khushi Agrawal 1

I'm trying to set visual studio for pytorch in cpp language but I'm getting the following error

Build started...
1>------ Build started: Project: ConsoleApplication1, Configuration: Debug x64 ------
1>ConsoleApplication1.cpp
1>C:\Users\91939\source\repos\ConsoleApplication1\ConsoleApplication1\ConsoleApplication1.cpp(1,10): fatal error C1083: Cannot open include file: 'torch\torch.h': No such file or directory
1>Done building project "ConsoleApplication1.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Please help me out to resolve the error.

I used

https://raminnabati.com/post/004_adv_pytorch_integrating_pytorch_cpp_frontend_in_visual_studio_on_windows/

this blog for setting up the environment for visual studio.

2 answers

Sam of Simple Samples 5,516 Reputation points

2021-05-29T17:34:15.803+00:00

Did you set the environment variables as described in Step 2? I hope you did not install LibTorch to C:\libtorch-debug-v1.5.1; I would have installed it to a subdirectory someplace.

As described in Step 3, in Project Properties under C/C++ -> General -> Additional Include Directories, did you add the path to LibTorch? If not then the compiler does not know where torch\torch.h is.
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1 person found this answer helpful.
Khushi Agrawal 1 Reputation point

2021-05-29T19:32:54.38+00:00

I installed the latest stable version of libtorch 1.8.1. The extracted folder is present in downloads folder so I used path accordingly. Bellow attached ss shows the 2nd step command which I used.

For step 2 & step 3, I used: "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\Lib" these complete commands to add paths for include and lib folders.

But it's showing error. Is their any mistake?

Thanks for your response.

Sam of Simple Samples 5,516 Reputation points

2021-05-29T19:54:53.563+00:00

For Additional Include Directories you need to add the directory where torch\torch.h is at. That is, a subdirectory called torch that has torch.h in it. The directory you used does not have torch (or any of that) in it. Look and find a directory called torch with a file called torch.h in it. The directory containing the torch directory is what you need to specify for the additional include directory.

Khushi Agrawal 1 Reputation point

2021-05-30T06:41:34.983+00:00

Thanks for helping me, I corrected this part. But still getting Built error as shown:

Build started...
1>------ Build started: Project: pytorch cpp, Configuration: Debug x64 ------
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppBuild.targets(519,5): warning MSB8028: The intermediate directory (x64\Debug) contains files shared from another project (ConsoleApplication1.vcxproj). This can lead to incorrect clean and rebuild behavior.
1>start.cpp
1>C:\Users\91939\Downloads\libtorch-win-shared-with-deps-debug-1.8.1+cpu\libtorch\include\torch\csrc\api\include\torch\cuda.h(3,10): fatal error C1083: Cannot open include file: 'torch/csrc/WindowsTorchApiMacro.h': No such file or directory
1>Done building project "ConsoleApplication1.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Khushi Agrawal 1 Reputation point

2021-05-30T08:29:42.97+00:00

I also cleared intermediate directory folders but the error is yet not resolved. I'm getting:

Build started...
1>------ Build started: Project: pytorch cpp, Configuration: Debug x64 ------
1>start.cpp
1>C:\Users\91939\Downloads\libtorch-win-shared-with-deps-debug-1.8.1+cpu\libtorch\include\torch\csrc\api\include\torch\cuda.h(3,10): fatal error C1083: Cannot open include file: 'torch/csrc/WindowsTorchApiMacro.h': No such file or directory
1>Done building project "ConsoleApplication1.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
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Yi Zhang 1 Reputation point Microsoft Employee

2021-11-23T03:01:57.887+00:00

You could try https://marketplace.visualstudio.com/items?itemName=YiZhang.LibTorch001.
IIt will help you setup LibTorch Visual studio Project automatically.
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