You can resolve the Prompt, which must include a context variable error in Langchain JS while creating a retrieval chain by referring to the code below:
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In the above code, we are using the following approaches:
- Ensure the PromptTemplate includes the context in input variables and references {context} in the template.
- The retriever must provide relevant documents to populate the context.
Hence, by referring to the above, you can resolve the Prompt, which must include a context variable error in Langchain JS while creating a retrieval chain