The current requirements.txt specifies an incorrect version for the transformers library, leading to compatibility issues.
Versions < 4.45.0 lack modules like transformers.mixtral and transformers.mllama, causing ModuleNotFoundError.
Higher versions introduce breaking changes (e.g., AttributeError: 'LlamaAttention' object has no attribute 'num_heads') due to refactored attention layer attributes.
To fix it, pin the transformers version to 4.45.0 in requirements.txt: transformers==4.45.0