lm-sys / lm-sys/FastChat

Version compatibility problem

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#3,631 4 comments 2 reactions 0 assignees View on GitHub

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Dominant language
Python
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Description

A new version of vllm is available, which supports inference using bnb quantization. The properties of the vllm SamplingParams class have changed in the latest vllm version, but the fastchat code does not appear to have been updated to accommodate the new version of vllm, resulting in a package version compatibility issue. Here is the error message for accessing the model: TypeError: Unexpected keyword argument 'use beam search'

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  3. Fork the repository and make your change on a branch.
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Research direction

Start by locating FastChat's use of the vllm SamplingParams class and compare its arguments with the installed vllm version that raises the error. Reproduce the model-access failure, then verify that the compatibility issue is resolved without breaking supported vllm usage.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
ai, backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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