Required Typescript >= 4.3.2 but last version is 4.0.8

[UnPolinomio]

What version of Next.js are you using?

11.0.0

What version of Node.js are you using?

14.17.0

What browser are you using?

Chrome

What operating system are you using?

Windows

How are you deploying your application?

Not deploying but development environment.

Describe the Bug

After using yarn create next-app --typescript, when I run yarn run dev, I get a warning.

warn - Minimum recommended TypeScript version is v4.3.2, older versions can potentially be incompatible with Next.js. Detected: 4.0.8

I thinks this bug was introduced with #25867, I'm not sure though.

Expected Behavior

I would expect not to get the warning.

To Reproduce

• Create an app using yarn create next-app --typescript
• yarn run dev

[timneutkens]

https://www.npmjs.com/package/typescript

Latest version of the typescript package is 4.3.3, can you provide a full reproduction, as the steps provided are running fine.

[advaiyalad]

@UnPolinomio Ran the exact steps that you put in the "To Reproduce" section, but unable to get any warnings whatsoever (well, apart from the webpack 5 thing). Are you changing the typescript version in package.json? This is the package.json that gets generated when you run yarn create next-app --typescript:

{
  "name": "my-project",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start",
    "lint": "next lint"
  },
  "dependencies": {
    "next": "11.0.0",
    "react": "17.0.2",
    "react-dom": "17.0.2"
  },
  "devDependencies": {
    "@types/react": "17.0.11",
    "eslint": "7.28.0",
    "eslint-config-next": "11.0.0",
    "typescript": "4.3.3"
  }
}

[UnPolinomio]

I think is now solved. Yesterday when I visited https://www.npmjs.com/package/typescript, last Typescript version was 4.0.8 and yarn create next-app --typescript downloaded that version.

[balazsorban44]

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