Jest version dependency issue

[aflores]

Hello,

There seems to be an issue with the version of jest in the current packages.json file

npm install
Works fine. but:

npm start
Fails with:

`/rtk-github-issues-example/node_modules/jest-diff/build/diffLines.d.ts
TypeScript error in /rtk-github-issues-example/node_modules/jest-diff/build/diffLines.d.ts(8,13):
'=' expected. TS1005

 6 |  */
 7 | import { Diff } from './cleanupSemantic';

8 | import type { DiffOptions } from './types';
| ^
9 | export declare const diffLinesUnified: (aLines: string[], bLines: string[], options?: DiffOptions | undefined) => string;
10 | export declare const diffLinesUnified2: (aLinesDisplay: string[], bLinesDisplay: string[], aLinesCompare: string[], bLinesCompare: string[], options?: DiffOptions | undefined) => string;
11 | export declare const diffLinesRaw: (aLines: string[], bLines: string[]) => Diff[];`

In packages.json, I replaced:
"@types/jest": "24.0.18"

with:
"@types/jest": "^24.2.2"

And the app works fine nowl.

Thanks for such a detailed example

[roninbar]

Same here, but I solved it by updating typescript to the latest version (4.0.3).
It says here that you need typescript >= 3.8.2.

[GeorgeMSchaffer]

The same

[tianfeng65]

the same,but when I use 'yarn install',everything is ok!

[jota12x]

Updating to the latest version of Typescript solved the issue.