Error: @vitejs/plugin-legacy does not support library mode.

[rafaytahir23]

Describe the bug

I have created the ionic vue project using vite.
Following are my configs:

When I tried to build (npm run build) the project. I am facing the following error:

Reproduction

npm run build

Steps to reproduce

System Info

System:
    OS: Linux 6.2 Ubuntu 22.04.3 LTS 22.04.3 LTS (Jammy Jellyfish)
    CPU: (8) x64 Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz
    Memory: 15.44 GB / 31.23 GB
    Container: Yes
    Shell: 5.1.16 - /bin/bash
  Binaries:
    Node: 16.20.1 - ~/.nvm/versions/node/v16.20.1/bin/node
    Yarn: 1.22.19 - ~/.nvm/versions/node/v16.20.1/bin/yarn
    npm: 8.19.4 - ~/.nvm/versions/node/v16.20.1/bin/npm
  Browsers:
    Brave Browser: 117.1.58.137
    Chrome: 117.0.5938.149
  npmPackages:
    @vitejs/plugin-legacy: ^4.0.2 => 4.1.1 
    @vitejs/plugin-vue: ^4.0.0 => 4.2.3 
    vite: ^4.4.11 => 4.4.11

Used Package Manager

npm

Logs

[email protected] build
vite build debug

vite v4.4.11 building for production...
✓ 0 modules transformed.
✓ built in 12ms
Could not resolve entry module "debug/index.html".
error during build:
RollupError: Could not resolve entry module "debug/index.html".
at error (file:///home/contrive/Documents/scansdk/node_modules/rollup/dist/es/shared/node-entry.js:2245:30)
at ModuleLoader.loadEntryModule (file:///home/contrive/Documents/scansdk/node_modules/rollup/dist/es/shared/node-entry.js:24695:20)
at async Promise.all (index 0)

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.

[sadn1ck]

Maybe try out some solutions in #1639? Also seems like this is expected without babel to transpile into older ES versions

[sapphi-red]

plugin-legacy doesn't support lib mode as shown in the error.
Duplicate of #1639