Error2 reports
Fix ContextOverflowError
in LangChain
✅ Solution
The ContextOverflowError in Langchain usually arises when the combined length of your prompt, retrieved documents, and model response exceeds the model's maximum context window. To fix this, shorten your prompt, reduce the number or size of retrieved documents (e.g., using a more restrictive retriever or summarization), or select a model with a larger context window. You can also explore techniques like context compression or recursive summarization to fit more information within the limit.
Related Issues
Real GitHub issues where developers encountered this error:
Timeline
First reported:May 19, 2026
Last reported:May 19, 2026