{"error":"Unexpected token '<', \"<!DOCTYPE \"... is not valid JSON"}

[Ayushyaverma]

It was working when I initially installed, now this showing this error

in langchain
Cannot read properties of undefined (reading 'map')

TypeError: Cannot read properties of undefined (reading 'map')
at formatDocuments (webpack-internal:///(rsc)/./node_modules/langchain/dist/chains/combine_documents/base.js:16:55)
at RunnableLambda.eval [as func] (webpack-internal:///(rsc)/./node_modules/langchain/dist/chains/combine_documents/stuff.js:33:278)
at eval (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:1437:44)
at MockAsyncLocalStorage.run (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/singletons/index.js:11:9)
at output (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:1435:117)
at new Promise ()
at RunnableLambda._transform (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:1434:30)
at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
at async RunnableLambda._transformStreamWithConfig (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:306:30)
at async RunnableSequence._streamIterator (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:1146:30)
at async RunnableSequence.transform (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:394:9)
at async RunnableMap._transform (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:1332:42)
at async RunnableMap._transformStreamWithConfig (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:306:30)
at async RunnableAssign._transform (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:1664:16)
at async RunnableAssign._transformStreamWithConfig (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:306:30)
at async ChatPromptTemplate.transform (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:384:26)
at async ChatTogetherAI.transform (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:384:26)
at async wrapInputForTracing (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:276:30)
at async pipeGeneratorWithSetup (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/utils/stream.js:224:19)
at async StringOutputParser._transformStreamWithConfig (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:295:26)
at async StringOutputParser.transform (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/output_parsers/transform.js:44:9)
at async RunnableSequence._streamIterator (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:1146:30)
at async RunnableSequence.transform (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:394:9)
at async RunnableMap._transform (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:1332:42)
at async RunnableMap._transformStreamWithConfig (webpack-internal:///(rsc)/./node_modules/@langchain/core/dist/runnables/base.js:306:30)

[GanapathyVicky]

I also facing the same error

[peterkessibu]

I am getting the same error, how do I fix it?

[GanapathyVicky]

somehow i can manage to do it But still i don't know how its working

[peterkessibu]

Oh ok that's cool

[Saberdz19]

any solution to this?

[peterkessibu]

Nope