Import issues in latest version (25.2.0)

💥 Regression Report

Doing an npm i shows the import errors:

tsc -b . …/node_modules/jest-diff/build/diffLines.d.ts:8:13 - error TS1005: ‘=’ expected. 8 import type { DiffOptions } from ‘./types’; ~…/node_modules/jest-diff/build/diffLines.d.ts:8:34 - error TS1005: ‘;’ expected. 8 import type { DiffOptions } from ‘./types’; ~~~~~~~~~ …/node_modules/jest-diff/build/index.d.ts:10:13 - error TS1005: ‘=’ expected. 10 import type { DiffOptions } from ‘./types’; ~ …/node_modules/jest-diff/build/index.d.ts:10:34 - error TS1005: ‘;’ expected. 10 import type { DiffOptions } from ‘./types’; ~~~~~~~~~ …/node_modules/jest-diff/build/index.d.ts:11:1 - error TS1128: Declaration or statement expected. 11 export type { DiffOptions, DiffOptionsColor } from ‘./types’;

Last working version

25.1.0

Stopped working in version:

25.2.0

To Reproduce

just do a npm i

Steps to reproduce the behavior:

just do a npm i

Expected behavior

A clear and concise description of what you expected to happen.

jest -diff installs without any issues whatsoever

Link to repl or repo (highly encouraged)

Please provide either a repl.it demo or a minimal repository on GitHub.

Issues without a reproduction link are likely to stall.

Run npx envinfo --preset jest

Paste the results here:

npx: installed 1 in 3.108s

  System:
    OS: Windows 10 10.0.18363
    CPU: (4) x64 Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz
  Binaries:
    Node: 12.4.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.10.1 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
    npm: 6.13.7 - C:\Program Files\nodejs\npm.CMD

[paulconlin]

It looks like you need typescript > 3.8.0 as support was just recently added - https://devblogs.microsoft.com/typescript/announcing-typescript-3-8-rc/

Also referenced here - https://github.com/facebook/create-react-app/issues/8714

Installing typescript latest or at least v3.8.2 will fix it.

[heavenkiller2018]

I’m experiencing this problem with typescript 4.0.5 and jest 26.4.2: