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tRPC

TypeError: Cannot read properties of null (reading 'useContext') when using useMutation with TRPC in

TypeError: Cannot read properties of null (reading 'useContext') when using useMutation with TRPC in

Z.ziyadev5/30/2023
I'm encountering an error in my Next.js application when trying to use the useMutation hook with TRPC (Typed RPC) library. The error message I'm getting is "TypeError: Cannot read properties of null (reading 'useContext')". It seems to be related to the useContext hook, but I'm not sure how to resolve it. Here's the relevant code snippet within a Next.js component, including the TRPC setup: ´´´ /// trpc router import { api } from "~/utils/api"; import { createTRPCRouter, publicProcedure } from "~/server/api/trpc"; import { input, z } from "zod"; export const signUpRouter = createTRPCRouter({ register: publicProcedure .input(z.object({ email: z.string().email(), password: z.string().min(8) })) .mutation(async ({ input }) => { try { // Code inside the mutation } catch (error) { console.log(error); return "An error occurred while processing the request."; } }), }); /// this signup form const mutation = api.user.register.useMutation(); const handleSignUp = (values: { email: string; password: string }) => { mutation.mutate({ email: values.email, password: values.password, }); }; export const SignUpForm = () => { // ... }; ´´´ I have checked the imports, dependencies, and the usage of the useMutation hook. However, I'm still encountering this error. I suspect it might be related to the interaction between the TRPC library and Next.js or the way I'm using the useMutation hook with TRPC. Has anyone encountered a similar issue when using TRPC with Next.js? Any suggestions on what might be causing this error and how I can resolve it would be greatly appreciated.
Nnlucas5/31/2023
Have you set up your Provider (or for next: "withTRPC") correctly? https://trpc.io/docs/nextjs/setup#5-configure-_apptsx Also ensure that the component calling the hooks is beneath that in the hierarchy, this very much looks a case on not being able to get the Context for React Query or tRPC

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TypeError: Cannot read properties of null (reading 'useContext') when using useMutation with TRPC in

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