Generics: Cannot find name 'T'.

[metkm]

I've created a repository with this error.
https://github.com/metkm/generic-issue

Volar versions I have installed:
Vue Language Features (Volar) v1.2.0
TypeScript Vue Plugin (Volar) v1.6.4

[metkm]

Also when I switch to pre-release version on both extensions defineModel macro is overwriting the defineProps macro.

<script setup lang="ts" generic="T">
defineProps<{
  num: number
}>()
const modelValue = defineModel<T>();
</script>

this gives Argument of type '{ num: number; }' is not assignable to parameter of type '{ modelValue?: unknown; } & VNodeProps & AllowedComponentProps & ComponentCustomProps'. Object literal may only specify known properties, and 'num' does not exist in type '{ modelValue?: unknown; } & VNodeProps & AllowedComponentProps & ComponentCustomProps'.

[zf1998]

Update vue to @3.3.x, vue-tsc to @1.6.x , See detail .

[thimonwentink]

@zf1998 I'm running into the same problem and have exactly the package versions you mention (vue 3.3.4 and vue-tsc 1.6.5)

[localusercamp]

same here

[metkm]

Update vue to @3.3.x, vue-tsc to @1.6.x , See detail .

It doesn't work, please try if it works first

[Danny2462]

Something weird about this:
I had generics work when I updated Vue to 3.3
Then I decided to try out the pre-release version of both Vue.volar and Vue.vscode-typescript-vue-plugin
Switched back to release versions, and after a VSCode reload, this error started happening

The extension was in takeover mode before and after too

Switching back to pre-release fixes it, but I wasn't planning on actually using it, and now I seem to be stuck with it, so beware

[metkm]

@Danny2462 You can't use DefineModel macro with defineProps on pre-release though, Others should know it as well so I'm gonna comment on it again here. The screenshot of the issue is here #3164 (comment)

[zf1998]

I update vue to @3.3.4, vue-tsc to @1.6.5, using webstorm development, manually point the typescript directory to vue-tsc.

Suggest using vue-tsc to check for type errors on the command line, to help us determine if the editor plugin and vue-tsc type check results are the same