@sodatea This issue and #6736 are related to fork-ts-checker-webpack-plugin, ts-checker doesn't support <script setup> yet, I've submitted an issue and waiting for reply.

But think a little further, is it better to create Vue3 project with vue-cli-plugin-vite? Vite can provide long-term support for Vue3.

I noticed this problem too and saw your issue in fork-ts-checker-webpack-plugin
Maybe we can try to fix it if there is no progress in the near future

Using vue-cli-plugin-vite as the default startup dependency is not a good idea

We are currently using vite in the dev mode and use vue cli in the build mode, and there are still a lot of problems with vite that are hard to solve (but webpack is fine)

So what I suggest is that users should install this vue-cli-plugin-vite plugin manually

@screetBloom Thanks for reply.

That's what I've been wondering about lately: the current role of vite and vue-cli. Based on some understanding of your answer, although vite's build mode relies on rollup, but there still a cost of migrating from webpack to rollup in real-world projects.

there are still a lot of problems with vite that are hard to solve (but webpack is fine)

any progress on this?

Please update to https://github.com/TypeStrong/fork-ts-checker-webpack-plugin/releases/tag/v6.4.1 where the issue is fixed.

There still seems to be some problems, I will comment under the #676

Ok, then this issue can be closed

No. While it worked for me, others are still reporting uncovered edge cases.
I think we should do the update in vue-cli, but this issue needs to stay open until everything is covered.

it worked for me too, then it can be closed first, for unknown case maybe can add another issue 😄

Hi! Sorry to reopen, I have this problem with Vue 3 and script setup not showing typescript errors on console. I tried forcing fork-ts-checker version with pnpm but no changes. Did you manage to resolve it?

The first try to solve this in fork-ts-checker-webpack-plugin was reverted and no further attempt has been made afaict.
I have switched to vite since and am using vue-tsc there anway. I think vue-tsc also works in vue-cli context as a workaround. Just has to be triggered manually. @victorgarciaesgi

Thanks @bodograumann ! Decided to use vue-tsc --watch for dev mode too it works great!