Can't generate images. NotImplementedError: No operator found for `memory_efficient_attention_forward`

[ahblahblah]

I can launch it, but the generation always stops early. This might be the cause:

Launching Web UI with arguments: --enable-insecure-extension-access --share --disable-safe-unpickle --theme dark --no-hashing --xformers
WARNING:xformers:WARNING[XFORMERS]: xFormers can't load C++/CUDA extensions. xFormers was built for:
    PyTorch 2.0.1+cu118 with CUDA 1108 (you have 2.2.1+cu121)
    Python  3.10.11 (you have 3.10.12)
  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