[BUILD] Fail to install fVDB into ubuntu 22.04 with anaconda environment

[stratonlive]

Environment

Operating System: Ubuntu 22.04
Version / Commit SHA: feature/fVDB
CMake Version: 3.22.1
Compiler: gcc 11.4.0

Describe the problem

When I try to run python setup.py develop or pip install . to install fvdb it always return error in cpp_extension.py which is used in setup.py line 299

To Reproduce

Steps to reproduce the behavior:

1. Checkout repo https://github.com/AcademySoftwareFoundation/openvdb/blob/feature/fvdb/fvdb/README.md#setting-up-a-conda-environment
2. See error

Traceback (most recent call last):
File "/home/ubuntu/Downloads/openvdb-feature-fvdb/fvdb/setup.py", line 299, in
lib_ext = cpp_extension.CUDAExtension(
File "/opt/conda/envs/fvdb_learn/lib/python3.10/site-packages/torch/utils/cpp_extension.py", line 1076, in CUDAExtension
library_dirs += library_paths(cuda=True)
File "/opt/conda/envs/fvdb_learn/lib/python3.10/site-packages/torch/utils/cpp_extension.py", line 1207, in library_paths
if (not os.path.exists(_join_cuda_home(lib_dir)) and
File "/opt/conda/envs/fvdb_learn/lib/python3.10/site-packages/torch/utils/cpp_extension.py", line 2416, in _join_cuda_home
raise OSError('CUDA_HOME environment variable is not set. '
OSError: CUDA_HOME environment variable is not set. Please set it to your CUDA install root.

3. However I already make CUDA_HOME environment into /usr/local/cuda-12.1 as shown in Screen shot.

Additional context

Screen shot of error is below