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You wrote code using TokenTextSplitter but get an error: 'chunk_overlap' is not recognized. What is the likely cause?

medium📝 Debug Q6 of 15
LangChain - Text Splitting
You wrote code using TokenTextSplitter but get an error: 'chunk_overlap' is not recognized. What is the likely cause?
ASetting chunk_size to zero
BPassing chunk_overlap as a string instead of integer
CUsing an outdated langchain version without chunk_overlap support
DForgetting to import TokenTextSplitter
Step-by-Step Solution
Solution:

  1. Step 1: Identify error cause

    chunk_overlap parameter is recent; older langchain versions may not support it.

  2. Step 2: Check version compatibility

    Using an outdated langchain version causes unrecognized parameter errors.

  3. Final Answer:

    Using an outdated langchain version without chunk_overlap support -> Option C

  4. Quick Check:

    chunk_overlap error = outdated version [OK]
Quick Trick: Update langchain to latest version for new parameters [OK]
Common Mistakes:
  • Assuming parameter type error
  • Ignoring import errors
  • Setting chunk_size incorrectly

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