Fix ModuleNotFoundError

✅ Solution

The "ModuleNotFoundError" in vllm usually indicates that a required vllm module is missing or the vllm installation is incomplete/corrupted. Reinstall vllm using `pip install --upgrade vllm` or `pip install --no-cache-dir --force-reinstall vllm` to ensure all necessary modules are correctly installed. If using a specific branch or commit, ensure you've properly built and installed vllm from source as per the documentation.