Install failure on win11

I have followed the given install instructions exactly, on a new machine with Win11 pro and a fresh installation of miniconda, and get this error:

Installing pip dependencies: - Ran pip subprocess with arguments: ['C:\Users\tksha\miniconda3\envs\gaussian_splatting\python.exe', '-m', 'pip', 'install', '-U', '-r', 'G:\project] Pip subprocess output: Processing g:\projects\3dgs-to-pc\gaussian-splatting\submodules\diff-gaussian-rasterization Preparing metadata (setup.py): started Preparing metadata (setup.py): finished with status 'error'

Pip subprocess error: error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully. │ exit code: 1 ╰─> [8 lines of output] Traceback (most recent call last): File "", line 36, in File "", line 34, in File "G:\projects\3DGS-to-PC\gaussian-splatting\submodules\diff-gaussian-rasterization\setup.py", line 13, in <> from torch.utils.cpp_extension import CUDAExtension, BuildExtension File "C:\Users\tksha\miniconda3\envs\gaussian_splatting\lib\site-packages\torch_init_.py", line 129, in raise err OSError: [WinError 182] The operating system cannot run %1. Error loading "C:\Users\tksha\miniconda3\envs\gaussia. [end of output]

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

× Encountered error while generating package metadata. ╰─> See above for output.

note: This is an issue with the package mentioned above, not pip. hint: See above for details.

failed

CondaEnvException: Pip failed

Under the powershell Anaconda prompt, same error, but slightly different output:

Installing pip dependencies: \ Ran pip subprocess with arguments: ['C:\Users\tksha\miniconda3\envs\gaussian_splatting\python.exe', '-m', 'pip', 'install', '-U', '-r', 'G:\projects\3DGS-to-PC\gaussian-s] Pip subprocess output: Processing g:\projects\3dgs-to-pc\gaussian-splatting\submodules\diff-gaussian-rasterization Preparing metadata (setup.py): started Preparing metadata (setup.py): finished with status 'error'

Pip subprocess error: error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully. │ exit code: 1 ╰─> [8 lines of output] Traceback (most recent call last): File "", line 36, in File "", line 34, in File "G:\projects\3DGS-to-PC\gaussian-splatting\submodules\diff-gaussian-rasterization\setup.py", line 13, in from torch.utils.cpp_extension import CUDAExtension, BuildExtension File "C:\Users\tksha\miniconda3\envs\gaussian_splatting\lib\site-packages\torch_init_.py", line 129, in raise err OSError: [WinError 182] The operating system cannot run %1. Error loading "C:\Users\tksha\miniconda3\envs\gaussian_splatting\lib\site-pack. [end of output]

Based on these outputs, I would suspect command line truncation. But that is only a guess. Any help to resolve this would be appreciated.