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Cannot find type definition file for 'jest' #53563
Description
Description
In a very minimal package declaring a dependency on react-native and the @react-native/typescript-config (such as a very simple library), extending the @react-native/typescript-config yields:
error TS2688: Cannot find type definition file for 'jest'.
The file is in the program because:
Entry point of type library 'jest' specified in compilerOptions
This happens because the tsconfig declares "types": ["jest"], while neither "react-native" nor "@react-native/typescript-config" declare a dependency on neither jest nor @types/jest.
I'd suggest moving the "types": ["jest"], to the template's tsconfig: https://github.com/react-native-community/template/blob/d2a0bee199b49611ee252dd5d7626f10a714bebd/template/tsconfig.json#L2 since that's the package bringing the jest dependency.
Steps to reproduce
Init a new package with this package.json
{
"name": "react-native-ts-test",
"private": true,
"version": "0.1.0",
"scripts": {
"build": "tsc --noEmit"
},
"devDependencies": {
"@react-native/typescript-config": "^0.81.1",
"typescript": "^5.9.2"
},
"dependencies": {
"react-native": "^0.81.1"
}
}and this tsconfig.json
{
"extends": "@react-native/typescript-config",
"include": ["src/index.ts"]
}Run npx tsc --noEmit 💥
error TS2688: Cannot find type definition file for 'jest'.
The file is in the program because:
Entry point of type library 'jest' specified in compilerOptions
React Native Version
0.81.1
Affected Platforms
Build - MacOS, Build - Windows, Build - Linux
Output of npx @react-native-community/cli info
N/A
Stacktrace or Logs
error TS2688: Cannot find type definition file for 'jest'.
The file is in the program because:
Entry point of type library 'jest' specified in compilerOptions
MANDATORY Reproducer
https://github.com/react-native-community/reproducer-react-native
Screenshots and Videos
Activity
react-native-bot commentedon Sep 2, 2025
Warning
Missing reproducer: We could not detect a reproducible example in your issue report. Reproducers are mandatory and we can accept only one of those as a valid reproducer:
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atulgpt17 commentedon Sep 5, 2025
Hi, I am able to repro this issue with the steps mentioned above
cortinico commentedon Sep 8, 2025
Yup this feels like a good way forward. Are you up for sending a PR here?
Also cc @robhogan for visibility
kraenhansen commentedon Sep 19, 2025
Here's a PR making the use of
jestexplicit in the template: react-native-community/template#177And here's a PR (in draft) to remove it from
@react-native/typescript-config: #53855