I was setting uo LTX2.3 locally using wan2GP and I ran into this error following the manual installation at last:

Do you guys know how to fix it?

Error CUDA error: out of memory Search for cudaErrorMemoryAllocation' in https://docs.nvidia.com/cuda/cuda-runtime-api/group__CUDART__TYPES.html for more information. CUDA kernel errors might be asynchronously reported at some other API call, so the stacktrace below might be incorrect. For debugging consider passing CUDA_LAUNCH_BLOCKING=1 Compile with TORCH_USE_CUDA_DSA` to enable device-side assertions.

This is the git repository: https://github.com/deepbeepmeep/Wan2GP