> **Bug**:Interesting finding: The official pip package v0.6.3 is broken. However, installing https://vllm-wheels.s3.us-west-2.amazonaws.com/nightly/vllm-1.0.0.dev-cp38-abi3-manylinux1_x86_64.whl fixes this issue. (vLLM API server version 0.6.3.post2.dev139+g622b7ab9)

[Wiselnn570]

          > Interesting finding: The official pip package v0.6.3 is broken. However, installing `https://vllm-wheels.s3.us-west-2.amazonaws.com/nightly/vllm-1.0.0.dev-cp38-abi3-manylinux1_x86_64.whl` fixes this issue. (`vLLM API server version 0.6.3.post2.dev139+g622b7ab9`)

@SinanAkkoyun What does python 3.10.15 should install, seemly I meet the same issue, thanks a lot!!

Originally posted by @Wiselnn570 in #9732 (comment)

[Wiselnn570]

When I run

pip install https://vllm-wheels.s3.us-west-2.amazonaws.com/nightly/vllm-1.0.0.dev-cp38-abi3-manylinux1_x86_64.whl

I get

...

  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for xformers
  Running setup.py clean for xformers
Failed to build xformers
ERROR: ERROR: Failed to build installable wheels for some pyproject.toml based projects (xformers)

[SinanAkkoyun]

Hi, in what environment are you running?
I created a new env: conda create python=3.11 -n vllm
Then I simply ran pip install https://vllm-wheels.s3.us-west-2.amazonaws.com/nightly/vllm-1.0.0.dev-cp38-abi3-manylinux1_x86_64.whl
If you run into issues you could also try to first run pip install vllm and then the dev installation

[Wiselnn570]

Hi, in what environment are you running? I created a new env: conda create python=3.11 -n vllm Then I simply ran pip install https://vllm-wheels.s3.us-west-2.amazonaws.com/nightly/vllm-1.0.0.dev-cp38-abi3-manylinux1_x86_64.whl If you run into issues you could also try to first run pip install vllm and then the dev installation

Thanks, have solved yet.