ComfyUI Installation Fails: "No module named 'torch'"

[madmanslullaby]

Fresh install of ComfyUI, followed the exact steps outlined in the readme, fails at the Install Dependencies step, with the following output:

(ComfyUI) PS C:\Users\madmanslullaby\Desktop\ComfyUI\custom_nodes\stable-point-aware-3d> pip install -r requirements.txt

Collecting git+https://github.com/openai/CLIP.git (from -r requirements.txt (line 6))
  Cloning https://github.com/openai/CLIP.git to c:\users\madmanslullaby\appdata\local\temp\pip-req-build-ftgr_2e0
  Running command git clone --filter=blob:none --quiet https://github.com/openai/CLIP.git 'C:\Users\madmanslullaby\AppData\Local\Temp\pip-req-build-ftgr_2e0'
  Resolved https://github.com/openai/CLIP.git to commit dcba3cb2e2827b402d2701e7e1c7d9fed8a20ef1
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Collecting git+https://github.com/SunzeY/AlphaCLIP.git (from -r requirements.txt (line 7))
  Cloning https://github.com/SunzeY/AlphaCLIP.git to c:\users\madmanslullaby\appdata\local\temp\pip-req-build-0q29vxr7
  Running command git clone --filter=blob:none --quiet https://github.com/SunzeY/AlphaCLIP.git 'C:\Users\madmanslullaby\AppData\Local\Temp\pip-req-build-0q29vxr7'
  Resolved https://github.com/SunzeY/AlphaCLIP.git to commit 3457474356108988bed7f0354a5cfeeeb8322aeb
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Processing c:\users\madmanslullaby\desktop\comfyui\custom_nodes\stable-point-aware-3d\texture_baker
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  error: subprocess-exited-with-error

  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [23 lines of output]
      Traceback (most recent call last):
        File "C:\Python313\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 353, in <module>
          main()
          ~~~~^^
        File "C:\Python313\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 335, in main
          json_out['return_val'] = hook(**hook_input['kwargs'])
                                   ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
        File "C:\Python313\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 118, in get_requires_for_build_wheel
          return hook(config_settings)
        File "C:\Users\madmanslullaby\AppData\Local\Temp\pip-build-env-tijc30_3\overlay\Lib\site-packages\setuptools\build_meta.py", line 334, in get_requires_for_build_wheel
          return self._get_build_requires(config_settings, requirements=[])
                 ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "C:\Users\madmanslullaby\AppData\Local\Temp\pip-build-env-tijc30_3\overlay\Lib\site-packages\setuptools\build_meta.py", line 304, in _get_build_requires
          self.run_setup()
          ~~~~~~~~~~~~~~^^
        File "C:\Users\madmanslullaby\AppData\Local\Temp\pip-build-env-tijc30_3\overlay\Lib\site-packages\setuptools\build_meta.py", line 522, in run_setup
          super().run_setup(setup_script=setup_script)
          ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "C:\Users\madmanslullaby\AppData\Local\Temp\pip-build-env-tijc30_3\overlay\Lib\site-packages\setuptools\build_meta.py", line 320, in run_setup
          exec(code, locals())
          ~~~~^^^^^^^^^^^^^^^^
        File "<string>", line 5, in <module>
      ModuleNotFoundError: No module named 'torch'
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.

[notice] A new release of pip is available: 24.3.1 -> 25.0
[notice] To update, run: C:\Python313\python.exe -m pip install --upgrade pip
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.

[arkajyotimitra]

You can double check if there is torch installation in your environment, as they outline in their steps:

• Has PyTorch installed according to your platform: https://pytorch.org/get-started/locally/ [Make sure the Pytorch CUDA version matches your system's.]

For example, if you have a cuda version 12.4 in your system, you can first install pytorch as such:

pip install torch==2.5.1 torchvision==0.20.1 torchaudio==2.5.1 --index-url https://download.pytorch.org/whl/cu124