Vue Slot Component Causes "Cannot Read Properties of Null (reading 'ce')" Error When Rendering

[Kaifuny]

Vue version

3.5.13

Link to minimal reproduction

https://github.com/Kaifuny/test-vue-slot-component-package

Steps to reproduce

GitHub Repo: https://github.com/Kaifuny/test-vue-slot-component-package

yarn install

yarn build:ui

yarn dev

when you at the root of the app project

apps/desktop/src/App.vue

<script setup lang="ts">
import { Button1, Button2 } from '@test/ui';
</script>

<template>
  <div>
    <!-- <Button1></Button1> -->
    <Button2>bbb</Button2>
  </div>
</template>

Button2 is not working, but Button1 is working.

the error message is

index.mjs:618 Uncaught TypeError: Cannot read properties of null (reading 'ce')
    at renderSlot (index.mjs:618:32)
    at Proxy._sfc_render (index.mjs:1262:5)
    at renderComponentRoot (chunk-3SZSTCRY.js?v=05012731:8581:17)
    at ReactiveEffect.componentUpdateFn [as fn] (chunk-3SZSTCRY.js?v=05012731:7403:46)
    at ReactiveEffect.run (chunk-3SZSTCRY.js?v=05012731:481:19)
    at setupRenderEffect (chunk-3SZSTCRY.js?v=05012731:7538:5)
    at mountComponent (chunk-3SZSTCRY.js?v=05012731:7313:7)
    at processComponent (chunk-3SZSTCRY.js?v=05012731:7266:9)
    at patch (chunk-3SZSTCRY.js?v=05012731:6782:11)
    at mountChildren (chunk-3SZSTCRY.js?v=05012731:7014:7)

What is expected?

should render correctly without throwing an error, just like . Both components should be usable when imported from @test/ui in App.vue.

What is actually happening?

index.mjs:618 Uncaught TypeError: Cannot read properties of null (reading 'ce')
    at renderSlot (index.mjs:618:32)
    at Proxy._sfc_render (index.mjs:1262:5)
    at renderComponentRoot (chunk-3SZSTCRY.js?v=05012731:8581:17)
    at ReactiveEffect.componentUpdateFn [as fn] (chunk-3SZSTCRY.js?v=05012731:7403:46)
    at ReactiveEffect.run (chunk-3SZSTCRY.js?v=05012731:481:19)
    at setupRenderEffect (chunk-3SZSTCRY.js?v=05012731:7538:5)
    at mountComponent (chunk-3SZSTCRY.js?v=05012731:7313:7)
    at processComponent (chunk-3SZSTCRY.js?v=05012731:7266:9)
    at patch (chunk-3SZSTCRY.js?v=05012731:6782:11)
    at mountChildren (chunk-3SZSTCRY.js?v=05012731:7014:7)

System Info

System:
    OS: macOS 15.4
    CPU: (10) arm64 Apple M1 Max
    Memory: 347.48 MB / 64.00 GB
    Shell: 5.9 - /bin/zsh
Binaries:
    Node: 23.7.0 - /opt/homebrew/bin/node
    Yarn: 1.22.22 - /opt/homebrew/bin/yarn
    npm: 11.1.0 - /opt/homebrew/bin/npm
    bun: 1.2.3 - ~/.bun/bin/bun
Browsers:
    Chrome: 134.0.6998.89
    Safari: 18.4

Any additional comments?

No response

[linzhe141]

When you create a component library, you should exclude vue when building

   target: "esnext",
   outDir: "dist",
   emptyOutDir: true,
   minify: false,
+  rollupOptions: {
+     external: ["vue"],
+  },

[Kaifuny]

https://vite.dev/guide/build#library-mode