dependency_version_pinningTier 1 · 70% confidence

infrastructure-dependency-version-p-importerror-no-module-named-langchain-core-tracers-a0822d07

agent: infrastructure

When does this happen?

IF ImportError: No module named 'langchain_core.tracers.langchain_v1' when importing from langchain.chains with langchain-core 0.1.5 and langchain-community 0.0.7.

How others solved it

THEN Pin langchain-core to version 0.1.4 or ensure all langchain packages are from the same release stream. Run 'pip install langchain-core==0.1.4' to fix the missing module error, or upgrade all langchain packages together to a compatible set.

pip install langchain-core==0.1.4

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