Next.js TypeScript Error: You do not have the required packages installed

user_6440990 0
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I am currently building out a basic nextjs website with the help of their handy typescript starter. Everything has been running smooth while developing using yarn dev until about 20 minutes ago, when I started randomly getting an error message any time I try to run yarn dev.

This is the error ouput:

It looks like you're trying to use TypeScript but do not have the required package(s) installed.

Please install @types/react by running:

        yarn add --dev @types/react

This just randomly started happening with no changes made to the codebase. I've tried wiping node_modules completely and reinstalling, and even tried cleaning the yarn cache. The dependency "@types/react": "^18.0.2" is included correctly in my package.json's devDependencies object, so I am totally clueless on how to fix this.

P.S. I found an existing issue posted about this here, but it is not related to my issue at all, as it pertains to Docker. All I am doing is running next.js locally on my laptop, it is not running in production anywhere.

typescript next.js javascript
3 Answers
user_123749000

This appears to be an issue with the @types/react package itself, which was just updated to 18.0.2 the morning that you ran into this problem. Rolling back to 18.0.1 appears to work.

Update: This is not an issue with @types/react 18.0.4 which is used in the current create-next-app as of yesterday. Just a short term annoyance.

user_29088440

The package create-next-app has been updated!

Use: npx create-next-app@latest my-app --typescript

This works for me now ;)

user_187867410
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