feat: Enhance error messages for missing optional server dependencies…#307
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hikariming wants to merge 1 commit intoOpenBMB:mainfrom
Open
feat: Enhance error messages for missing optional server dependencies…#307hikariming wants to merge 1 commit intoOpenBMB:mainfrom
hikariming wants to merge 1 commit intoOpenBMB:mainfrom
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… and update fastmcp to improve optional dependency handling.
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This PR improves the developer experience when running ultrarag build with only base dependencies installed.
Previously, if an optional MCP server (for example evaluation) failed to start due to missing extras, the CLI surfaced a generic error like:
Client failed to connect: Server session was closed unexpectedly
This was hard to diagnose.
so i added a build-time error translation layer in client.py.
When client.call_tool(...) fails with a server-closed error for known optional servers (retriever, generation, evaluation, corpus), the CLI now raises a clear actionable message with install commands:
uv sync --extra
pip install "ultrarag[]"
Added explicit import guidance in evaluation.py:
If rouge-score is missing, it now raises a clear ModuleNotFoundError with installation instructions.