Failed to Compile

[Phil-jci]

Version

6.0.0-beta.21

Browser and OS info

Chrome 96 / Windows 11

Steps to reproduce

Create a new project which includes vue-router with the @vue/cli.

Run the @vue/cli script 'serve' (npm run serve) from within the new project directory.

What is expected?

Project builds and webpage is served at localhost.

What is actually happening?

ERROR Failed to compile with 1 error 15:27:04
error in ./node_modules/@vue/devtools-api/lib/esm/proxy.js

Module parse failed: Unexpected token (3:10)

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I'm something of a noob when it comes to Vue and JS in general, but the problem suddenly appeared a few hours ago, which I noticed is when you releases version 6.0.0-beta.21. If I use npm to manually roll back the vue-devtools version to 6.0.0-beta.20.1 the script builds the files without issue.

[randomailer]

for me the same situation

[leolivier]

same issue for me

edit: actually same as #1641

[kyrsquir]

Adding this to package.json helped me as a temporary solution (installing older version didn't help me as both vue-router and vuex depend on @vue/devtools-api and the error kept coming from them):

"resolutions": {
  "@vue/devtools-api": "6.0.0-beta.20.1"
}

This only works with yarn though

[Akryum]

Duplicate of #1641