Error when running Stable Diffusion

Hello, I have this problem, when running SD

WARNING[XFORMERS]: xFormers can't load C++/CUDA extensions. xFormers was built for: PyTorch 2.8.0+cu128 with CUDA 1208 (you have 2.9.0+cu126) Python 3.9.23 (you have 3.12.12) Please reinstall xformers (see https://github.com/facebookresearch/xformers#installing-xformers) Memory-efficient attention, SwiGLU, sparse and more won't be available. Set XFORMERS_MORE_DETAILS=1 for more details no module 'xformers'. Processing without... no module 'xformers'. Processing without... *** Cannot import xformers Traceback (most recent call last): File "/content/gdrive/MyDrive/sd/stable-diffusion-webui/modules/sd_hijack_optimizations.py", line 160, in import xformers.ops File "/usr/local/lib/python3.12/dist-packages/xformers/ops/init.py", line 9, in from .fmha import ( File "/usr/local/lib/python3.12/dist-packages/xformers/ops/fmha/init.py", line 10, in from . import attn_bias, ck, ck_splitk, cutlass, flash, flash3, triton_splitk File "/usr/local/lib/python3.12/dist-packages/xformers/ops/fmha/flash3.py", line 109, in from ...flash_attn_3 import _C # type: ignore[attr-defined] # noqa: F401 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ImportError: /usr/local/lib/python3.12/dist-packages/xformers/flash_attn_3/_C.so: undefined symbol: ZNK3c106SymInt6sym_neERKS0

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