New beta breaks vuetify setup

[DRoet]

Version

4.1.0-beta.0

Environment info

Docker container:
Node 13.0.1
Yarn 1.91.1

Steps to reproduce

1. create new project w/ 4.1.0-beta.0
2. add vuetify
3. start dev server w/ serve command

What is expected?

Dev server starts correctly

What is actually happening?

yarn run v1.19.1
$ vue-cli-service serve
 INFO  Starting development server...
 ERROR  Error: [VuetifyLoaderPlugin Error] No matching rule for vue-loader found.
Make sure there is at least one root-level rule that uses vue-loader.
Error: [VuetifyLoaderPlugin Error] No matching rule for vue-loader found.
Make sure there is at least one root-level rule that uses vue-loader.
    at VuetifyLoaderPlugin.apply (/opt/app/node_modules/vuetify-loader/lib/plugin.js:18:13)
    at webpack (/opt/app/node_modules/webpack/lib/webpack.js:51:13)
    at serve (/opt/app/node_modules/@vue/cli-service/lib/commands/serve.js:161:22)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
error Command failed with exit code 1.

[DRoet]

Idm fixing this downstream in our plugin, but I just wanted to mention the breakage

[haoqunjiang]

Thanks for the notice.
Seems it should be fixed downstream: it's broken by this line

vue-cli/packages/@vue/cli-service/lib/config/base.js

Line 84 in 1c41371

.loader(require.resolve('vue-loader'))

and this is certainly valid usage of vue-loader.

[DRoet]

Ah it seems this check in our loader is now broken: https://github.com/vuetifyjs/vuetify-loader/blob/master/lib/plugin.js#L14

Probably because the new require.resolve() way of loading vue-loader now returns the full path?

[DRoet]

opened up vuetifyjs/vuetify-loader#97 with a simple solution for this, there is probably some more work that needs to be done in order for vue-cli-plugin-vuetify to be fully compatible w/ yarn v2 tho.

[haoqunjiang]

Fixed in vuetify-loader 1.4.2

[swapneshkumar]

first create project using cli
Then goto folder where your package.json exist
and now try run command vue add vuetify
It will work without error