Fix AttributeError

✅ Solution

AttributeError in vllm usually indicates accessing a non-existent attribute or method of an object, often due to incorrect object types or version mismatches. Fix this by ensuring the object possesses the attribute before access using `hasattr(object, 'attribute')` or type checking, and verify that dependencies are compatible with the vllm version. Ensure model configurations align with expected architectures, especially when enabling experimental features.