Could not install it with vue3 project

[HomyeeKing]

🐛 Bug Report

To Reproduce

Steps to reproduce the behavior:

Expected behavior

Link to repo (highly encouraged)

Debug log:

# content of ts-jest.log :

**error** An unexpected error occurred: "could not find a copy of ts-jest to link in  XXXX/node_modules/vue-jest/node_modules".

envinfo

System:
    OS:
    Node version:

Npm packages:
    jest:
    ts-jest:
    typescript:
    babel(optional):

[HomyeeKing]

add successfully by specfying the version, linked issue is here

[ahnpnl]

This looks like related to specific workspace type. The error points to vue-jest. Any ideas @lmiller1990 ?

[lmiller1990]

Can you share a repo? Currently vue-jest@5.x requires ts-jest, even if you are not using TypeScript. This will be fixed in the next release for vue-jest.

[HomyeeKing]

@lmiller1990 it was found by a private repo with tsx in whole project and yarn as package manager ,I think I've found problem, it seems something wrong with yarn, I start two new projects, one is using npm , another using yarn, the npm one works fine, but the yarn one happens the same issue , here is the repo

[HomyeeKing]

@lmiller1990 any progress there 👀

[lmiller1990]

I pulled the repository and ran yarn install then I ran yarn test:unit and the test passed. What am I supposed to be seeing?

[HomyeeKing]

@lmiller1990 install ts-jest failed , try yarn add ts-jest

[HomyeeKing]

@lmiller1990 I tried installing it by yarn just now , it works, maybe you can close this issue,
by the way, is it fixed by yarn ?

[zmcNotafraid]

@lmiller1990 I tried installing it by yarn just now , it works, maybe you can close this issue,
by the way, is it fixed by yarn ?

Which yarn version are you using? My yarn version is 1.22.5 and I still can't install ts-jest

[HomyeeKing]

@zmcNotafraid em.. @1.22.10 kind of strange

I test it again at where I found this issue , it still not work, this repo still not work either
the repo I just tested is a yarn repo which already have vue-test, it works and I have no idea why, so strange ...

it seems have not been fixed

[zmcNotafraid]

ts-jest has conflict with vue-jest@5.x. When I switch to vue-jest@3.x, ts-jest can install

---

Update:
I test with ts-jest@25.x and ts-jest@27.x and they are all worked. But ts-jest@26.x can't install.

[lmiller1990]

vue-jest@5.x and vue-jest@3.x are entirely different projects. 3.x is not maintained, you want 4.x (for Vue 2). 5.x is for Vue 3. Yes, this is confusing, but I don't see a better way to version 🤔

I am not entirely sure why ts-jest 25.x and 27.x are okay and 26.x is not. 🤔

[HomyeeKing]

the related issue has been closed yarnpkg/yarn#6285 (comment)
seems it has been fixed in yarn v2