Version 5.0.2 of the plugin breaks the Vue migration build in MODE: 2

[matej-pavlik]

Related plugins

• plugin-vue

• plugin-vue-jsx

Describe the bug

Hi,
I am moving a Vue 2 (Vite) application to the Vue migration build. After investigation, I found that version 5.0.2 breaks the Vue migration build if configured with MODE: 2. Version 5.0.1 works fine.

Reproduction

https://stackblitz.com/edit/vitejs-vite-1vh64v?file=package.json

Steps to reproduce

The reproduction repo should work by default.

Change the @vitejs/plugin-vue version from 5.0.1 to 5.0.2 and run npm install && npm run dev in the terminal. Vite now outputs an [plugin:vite:vue] Cannot read properties of undefined (reading 'start') error.

System Info

System:
  OS: Linux 6.2 Ubuntu 22.04.3 LTS 22.04.3 LTS (Jammy Jellyfish)
  CPU: (8) x64 AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx
  Memory: 2.01 GB / 6.70 GB
  Container: Yes
  Shell: 5.1.16 - /bin/bash
Binaries:
  Node: 20.9.0 - /usr/local/bin/node
  Yarn: 3.6.0 - /usr/bin/yarn
  npm: 10.1.0 - /usr/local/bin/npm
  pnpm: 8.11.0 - /usr/local/bin/pnpm
  Watchman: 20230222.123454.0 - /usr/local/bin/watchman
Browsers:
  Chrome: 120.0.6099.62

Used Package Manager

npm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[irrg]

Experiencing the same issue. Pinning to 5.0.1 after reading this bug report—thank you for saving my sanity.

[haoqunjiang]

I'm still looking into this issue but here's a workaround:

    vue({
      template: {
        compilerOptions: {
          compatConfig: {
            MODE: 2,
            COMPILER_NATIVE_TEMPLATE: false,
          },
        },
      },
    })