Unexpected token '?' when trying to run 'npm run dev'

Question

Can someone help me with this error

SyntaxError: Unexpected token '?'
    at wrapSafe (internal/modules/cjs/loader.js:915:16)
    at Module._compile (internal/modules/cjs/loader.js:963:27)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.dev (/Users/@#@!1/!@#@!/node_modules/next/dist/lib/commands.js:10:30)
    at Object.<anonymous> (/Users/!@#!/!@#!!#/node_modules/next/dist/bin/next:141:28)
    at Module._compile (internal/modules/cjs/loader.js:999:30)

I ran npm on a mac

Boneyard

Answer 1

This happens, perhaps, due to incompatibility between Next.js and Node.js versions. If you upgrade your Node.js version to at least v14, it will work.

Donalddonaldson

I am on node.js version 18.0.0 but this doesn't seem to work. It does download 64-bit build. – Barina

Answer 2

I had the same issue when I try to run my next.js application. When I update the node version, error was gone.

You can use nvm(node version manager) to use multiple node versions in your computer.

Hope this will help to sort out your issue.

Unscathed

Answer 3

If you are using node with nvm, set the default node version with

nvm alias default <version>

I was facing this issue when react-native-reanimated library was using the default version of node(12) in my system instead of the version that I was using currently(18, set using [nvm use 18] command). So, I had to set the default version to 18 and restarted my laptop, and it fixed the issue.

Banshee