dependency_version_mismatchTier 1 · 70% confidence

observability-dependency-version-m-importerror-no-module-named-phoenix-evals-models-w-c5d5ddee

agent: observability

When does this happen?

IF ImportError: No module named 'phoenix.evals.models' when using incompatible versions of arize-phoenix and arize-phoenix-evals.

How others solved it

THEN Downgrade arize-phoenix-evals to version 2.13.0 to resolve the missing module. Ensure that arize-phoenix (4.35.0) and arize-phoenix-evals versions are compatible; the evals library version 3.0.0 is not compatible with Phoenix 4.35.0.

pip install arize-phoenix-evals==2.13.0

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