Version

3.0.4

Reproduction link

https://github.com/stephanedemotte/_issue-vue3-script-setup

Steps to reproduce

Create a fresh vitejs app

helloworld.vue

<template>
  <div>
    HelloWorld [{{ isActiveTpl }}]
  </div>
</template>

<script>
import { ref } from 'vue'
export const isActive = ref(false)
</script>

<script setup>
const isActiveTpl = isActive
</script>

app.vue

<template>
  <div>
    App [{{ isActive }}]
  </div>
</template>

<script setup>
import { isActive } from './components/HelloWorld.vue'
</script>

What is expected?

the value should be: true / false

What is actually happening?

After build the ref variable output a weird value

If i try to do isActive = !isActive on app.vue, i've got no error on dev, but got Error: Illegal reassignment to import 'isActive' when i try to build

Builded link http://test-vue-export.gaidaandsteph.com/

Duplicate of #2699 and already fixed by 085bbd5fe07c52056e9f7151fbaed8f6a2e442b3 (not released yet)

But wasn't 085bbd5fe07c52056e9f7151fbaed8f6a2e442b3 included in v3.0.4? The problem here only appears after bundling for prod

Yep, i've tested after the fix

Yep, i've tested after the fix

It work fine for me after the fix whether it's dev or build...

@CHOYSEN if you build my repo you didn't get that ?

@CHOYSEN if you build my repo you didn't get that ?

Yes, i clone your repo and build it, then start a server with koa, it work fine for me

@CHOYSEN It's crazy you don't have

{ "_rawValue": false, "_shallow": false, "__v_isRef": true, "_value": false }

After the build ?

I cannot believe it :/ Can you share a screen please ?

I've tried again from scratch, and i've got the same result App [{{ isActive }}] should return App[true] but got App [{ "_rawValue": false, "_shallow": false, "__v_isRef": true, "_value": false }]

@stephanedemotte

I find it, you should remove your yarn.lock and node_modules, then run yarn again

@stephanedemotte

There are some vue3.0.3 information in the file, which should be caused by this

@CHOYSEN thanks a lot, and very sorry for the noise :)