I can't install tiny-cuda-nn

[artF412]

I'm not sure what went wrong. Can anyone help me fix this?

• pip install git+https://github.com/NVlabs/tiny-cuda-nn/#subdirectory=bindings/torch

Error

(nerfstudio) C:\Users\unknow>pip install git+https://github.com/NVlabs/tiny-cuda-nn/#subdirectory=bindings/torch
Collecting git+https://github.com/NVlabs/tiny-cuda-nn/#subdirectory=bindings/torch
  Cloning https://github.com/NVlabs/tiny-cuda-nn/ to c:\users\unknow\appdata\local\temp\pip-req-build-lgknkao9
  Running command git clone --filter=blob:none --quiet https://github.com/NVlabs/tiny-cuda-nn/ 'C:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9'
  Resolved https://github.com/NVlabs/tiny-cuda-nn/ to commit 075158a70b87dba8729188a9cadc9411cfa4b71d
  Running command git submodule update --init --recursive -q
  Preparing metadata (setup.py) ... done
Building wheels for collected packages: tinycudann
  Building wheel for tinycudann (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py bdist_wheel did not run successfully.
  │ exit code: 1
  ╰─> [40 lines of output]
      C:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9\bindings/torch\setup.py:5: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
        from pkg_resources import parse_version
      Building PyTorch extension for tiny-cuda-nn version 1.7
      Obtained compute capability 75 from PyTorch
      Detected CUDA version 11.8
      Targeting C++ standard 17
      running bdist_wheel
      C:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\utils\cpp_extension.py:502: UserWarning: Attempted to use ninja as the BuildExtension backend but we could not find ninja.. Falling back to using the slow distutils backend.
        warnings.warn(msg.format('we could not find ninja.'))
      running build
      running build_py
      creating build\lib.win-amd64-cpython-38\tinycudann
      copying tinycudann\modules.py -> build\lib.win-amd64-cpython-38\tinycudann
      copying tinycudann\__init__.py -> build\lib.win-amd64-cpython-38\tinycudann
      running egg_info
      creating tinycudann.egg-info
      writing tinycudann.egg-info\PKG-INFO
      writing dependency_links to tinycudann.egg-info\dependency_links.txt
      writing top-level names to tinycudann.egg-info\top_level.txt
      writing manifest file 'tinycudann.egg-info\SOURCES.txt'
      reading manifest file 'tinycudann.egg-info\SOURCES.txt'
      writing manifest file 'tinycudann.egg-info\SOURCES.txt'
      copying tinycudann\bindings.cpp -> build\lib.win-amd64-cpython-38\tinycudann
      running build_ext
      building 'tinycudann_bindings._75_C' extension
      creating build\temp.win-amd64-cpython-38\Release\..\..\dependencies\fmt\src
      creating build\temp.win-amd64-cpython-38\Release\..\..\src
      creating build\temp.win-amd64-cpython-38\Release\tinycudann
      "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.43.34808\bin\HostX86\x64\cl.exe" /c /nologo /O2 /W3 /GL /DNDEBUG /MD -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/include -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies/cutlass/include -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies/cutlass/tools/util/include -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies/fmt/include -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include\torch\csrc\api\include -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include\TH -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include\THC "-IC:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8\include" -IC:\Users\unknow\miniconda3\envs\nerfstudio\include -IC:\Users\unknow\miniconda3\envs\nerfstudio\Include "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.43.34808\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\um" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\shared" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\winrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\cppwinrt" /EHsc /Tp../../dependencies/fmt/src/format.cc /Fobuild\temp.win-amd64-cpython-38\Release\../../dependencies/fmt/src/format.obj /MD /wd4819 /wd4251 /wd4244 /wd4267 /wd4275 /wd4018 /wd4190 /wd4624 /wd4067 /wd4068 /EHsc /std:c++17 -DTCNN_PARAMS_UNALIGNED -DTCNN_MIN_GPU_ARCH=75 -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=_75_C -D_GLIBCXX_USE_CXX11_ABI=0
      format.cc
      "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.43.34808\bin\HostX86\x64\cl.exe" /c /nologo /O2 /W3 /GL /DNDEBUG /MD -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/include -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies/cutlass/include -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies/cutlass/tools/util/include -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies/fmt/include -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include\torch\csrc\api\include -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include\TH -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include\THC "-IC:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8\include" -IC:\Users\unknow\miniconda3\envs\nerfstudio\include -IC:\Users\unknow\miniconda3\envs\nerfstudio\Include "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.43.34808\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\um" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\shared" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\winrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\cppwinrt" /EHsc /Tp../../dependencies/fmt/src/os.cc /Fobuild\temp.win-amd64-cpython-38\Release\../../dependencies/fmt/src/os.obj /MD /wd4819 /wd4251 /wd4244 /wd4267 /wd4275 /wd4018 /wd4190 /wd4624 /wd4067 /wd4068 /EHsc /std:c++17 -DTCNN_PARAMS_UNALIGNED -DTCNN_MIN_GPU_ARCH=75 -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=_75_C -D_GLIBCXX_USE_CXX11_ABI=0
      os.cc
      "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8\bin\nvcc" -c ../../src/common_host.cu -o build\temp.win-amd64-cpython-38\Release\../../src/common_host.obj -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/include -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies/cutlass/include -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies/cutlass/tools/util/include -IC:\Users\unknow\AppData\Local\Temp\pip-req-build-lgknkao9/dependencies/fmt/include -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include\torch\csrc\api\include -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include\TH -IC:\Users\unknow\miniconda3\envs\nerfstudio\lib\site-packages\torch\include\THC "-IC:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8\include" -IC:\Users\unknow\miniconda3\envs\nerfstudio\include -IC:\Users\unknow\miniconda3\envs\nerfstudio\Include "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.43.34808\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\um" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\shared" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\winrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\cppwinrt" -Xcudafe --diag_suppress=dll_interface_conflict_dllexport_assumed -Xcudafe --diag_suppress=dll_interface_conflict_none_assumed -Xcudafe --diag_suppress=field_without_dll_interface -Xcudafe --diag_suppress=base_class_has_different_dll_interface -Xcompiler /EHsc -Xcompiler /wd4068 -Xcompiler /wd4067 -Xcompiler /wd4624 -Xcompiler /wd4190 -Xcompiler /wd4018 -Xcompiler /wd4275 -Xcompiler /wd4267 -Xcompiler /wd4244 -Xcompiler /wd4251 -Xcompiler /wd4819 -Xcompiler /MD -D__CUDA_NO_HALF_OPERATORS__ -D__CUDA_NO_HALF_CONVERSIONS__ -D__CUDA_NO_BFLOAT16_CONVERSIONS__ -D__CUDA_NO_HALF2_OPERATORS__ --expt-relaxed-constexpr -std=c++17 --extended-lambda --expt-relaxed-constexpr -U__CUDA_NO_HALF_OPERATORS__ -U__CUDA_NO_HALF_CONVERSIONS__ -U__CUDA_NO_HALF2_OPERATORS__ -gencode=arch=compute_75,code=compute_75 -gencode=arch=compute_75,code=sm_75 -DTCNN_PARAMS_UNALIGNED -DTCNN_MIN_GPU_ARCH=75 -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=_75_C -D_GLIBCXX_USE_CXX11_ABI=0 -std=c++17 --use-local-env
      cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_OPERATORS__' with '/U__CUDA_NO_HALF_OPERATORS__'
      cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF_CONVERSIONS__' with '/U__CUDA_NO_HALF_CONVERSIONS__'
      cl : Command line warning D9025 : overriding '/D__CUDA_NO_HALF2_OPERATORS__' with '/U__CUDA_NO_HALF2_OPERATORS__'
      common_host.cu
      C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8\include\crt/host_config.h(153): fatal error C1189: #error:  -- unsupported Microsoft Visual Studio version! Only the versions between 2017 and 2022 (inclusive) are supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.
      common_host.cu
      error: command 'C:\\Program Files\\NVIDIA GPU Computing Toolkit\\CUDA\\v11.8\\bin\\nvcc' failed with exit code 2
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for tinycudann
  Running setup.py clean for tinycudann
Failed to build tinycudann
ERROR: ERROR: Failed to build installable wheels for some pyproject.toml based projects (tinycudann)

[sarthak247]

I was issues installing it too and I was also doing the same thing, i.e, working with nerfstudio. Here's what I did

• Make sure to be in nerfstudio directory
• Make sure torch is installed first
• Then install tinycudann with --no-build-isolation
  • Thus, pip install git+https://github.com/NVlabs/tiny-cuda-nn/#subdirectory=bindings/torch --no-build-isolation

This worked for me and I hope it works for you too. Cheers

[JohnsonManuel]

After spending over 48 hours troubleshooting, I finally got tiny-cuda-nn and Nerfstudio installed successfully. Here's what worked for me.

---

System Specs & Versions

• GPU: NVIDIA RTX 3060
• CUDA Version: 11.8
• Visual Studio Version: VS 2019 v17.8 (Worked!)
• Python Version: 3.8

---

Issues Faced & Fixes

1️⃣ TCNN_CUDA_ARCHITECTURES Error

Issue: Compilation failure due to missing CUDA architectures.

Fix: Set the CUDA architecture to 86:

set TCNN_CUDA_ARCHITECTURES=86

2️⃣ VS 2022 v17.10+ Not Working

Issue: CUDA (11.8) requires _MSC_VER < 1910 || _MSC_VER >= 1940, but VS 2022 sets _MSC_VER = 1940.

Fix: Removed VS 2022 v17.10+ and installed VS 2022 Fall 2023 LTSC (v17.8).

3️⃣ CMake and cl Not Recognized

Issue: Running cmake or cl returned "not recognized as a command."

Fix: Manually added the following paths to the system PATH:

set PATH=C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin;%PATH%
set PATH=C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.38.33130\bin\Hostx64\x86;%PATH%

Then activated the MSVC environment:

call "C:\Program Files\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\Build\vcvars64.bat"

4️⃣ Conda Environment Variables Not Set

Issue: CUDA was not detected properly inside Conda.

Fix: Manually set the following environment variables before installation:

set CUDAVER=11.8
set CUDA_HOME=%CONDA_PREFIX%
set CUDA_ROOT=%CONDA_PREFIX%
set PATH=%CONDA_PREFIX%\Library\bin;%PATH%
set LD_LIBRARY_PATH=%CONDA_PREFIX%\Library\lib;%LD_LIBRARY_PATH%
set LD_LIBRARY_PATH=%CONDA_PREFIX%\Library\lib64;%LD_LIBRARY_PATH%
set CUDA_HOST_COMPILER=C:\Program Files\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.3X.X\bin\Hostx64\x64\cl.exe

💡 To make these settings permanent, add them to your System Environment Variables.

5️⃣ Created a Conda Environment for Nerfstudio

conda create --name nerfstudio -y python=3.8
conda activate nerfstudio
python -m pip install --upgrade pip

6️⃣ Installed PyTorch with CUDA 11.8

pip install torch==1.12.1+cu113 torchvision==0.13.1+cu113 -f https://download.pytorch.org/whl/torch_stable.html

7️⃣ Installed tiny-cuda-nn via GitHub

Initially, the installation failed. However, after running:

pip install git+https://github.com/NVlabs/tiny-cuda-nn/#subdirectory=bindings/torch

it finally worked.

8️⃣ Installed Nerfstudio

pip install nerfstudio

---

🎉 Success!

Now, both tiny-cuda-nn and Nerfstudio are working perfectly! Hopefully, this helps someone else facing similar issues. 🚀

[CrimsonCuttle]

Neither of the solutions here worked for me and I'm going insane. Can't nerfstudio themselves just figure this crap out and update their docs???

[TangSan003]

I had the same problem when trying to build on kaggle and I found the website https://github.com/OutofAi/tiny-cuda-nn-wheels/releases. I chose the version that suits me and the rebuild ran successfully