mirror of
https://github.com/langchain-ai/langchain.git
synced 2026-10-07 18:35:22 +03:00
The number of times I try to format a string (especially in lcel) is embarrassingly high. Think this may be more actionable than the default error message. Now I get nice helpful errors ``` KeyError: "Input to ChatPromptTemplate is missing variable 'input'. Expected: ['input'] Received: ['dialogue']" ```