[MII] catch error wrt HF version and Mistral #4634
Merged
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If a user is trying to use Mistral with MII and running
transformers <= 4.34.0
they will get a cryptic KeyError from transformers. This is documented on the Mistral model page https://huggingface.co/mistralai/Mistral-7B-v0.1 but is an easy error to run into for users.This PR adds a version check to error out more gracefully. This should address at least part of the issue this user reported: microsoft/DeepSpeed-MII#258