Error1 reports
Fix UnhandledTrpcError
in tRPC
✅ Solution
UnhandledTrpcError usually arises when an error is thrown within a tRPC procedure that isn't caught and properly transformed into a `TRPCError`. Ensure you wrap procedure logic in try/catch blocks, using `throw new TRPCError({ code: 'WHATEVER_CODE', message: 'Helpful error message' })` to surface meaningful errors to the client. For errors originating outside procedures (middleware, global error handlers), verify you construct and throw a `TRPCError` instance to signal an expected error state.
Related Issues
Real GitHub issues where developers encountered this error:
Timeline
First reported:Sep 14, 2025
Last reported:Sep 14, 2025