Error1 reports
Fix KeyError
in sentence-transformers
✅ Solution
KeyError in sentence-transformers often arises when the input data's indexing (e.g., a Pandas Series index) doesn't align with the expected format during processing, especially within the encode() function. To fix this, ensure your input data has a standard integer index starting from 0, or explicitly convert your data (e.g., Pandas Series) to a list before passing it to the encode() function, bypassing any custom indexing issues. This forces sentence-transformers to iterate through the data sequentially without relying on potentially problematic keys.
Related Issues
Real GitHub issues where developers encountered this error:
Timeline
First reported:May 22, 2025
Last reported:May 22, 2025
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View sentence-transformers Changelog