Failed to extract schema for "ingestion_graph": TypeError: Cannot read properties of undefined (reading 'length')

[GGFUGG05]

Get Error: Failed to extract schema for "ingestion_graph": TypeError: Cannot read properties of undefined (reading 'length') when try to run yarn langgraph:dev for backend.
After checking the issues mentioned in troubleshooting still no solution.
Node version: v20
Yarn version: v1.22.22

[mayooear]

how is your langgraph.json set up?

[ChetanaChintapally]

info: ▪ <-- POST /threads/search
TypeError: Could not convert argument of type symbol to string.
at webidl.converters.DOMString (node:internal/deps/undici/undici:1977:15)
at webidl.converters.ByteString (node:internal/deps/undici/undici:1982:35)
at Object.record<ByteString, ByteString> (node:internal/deps/undici/undici:1894:30)
at webidl.converters.HeadersInit (node:internal/deps/undici/undici:3424:67)
at Object.ResponseInit (node:internal/deps/undici/undici:1951:21)
at new Response (node:internal/deps/undici/undici:4412:34)