[Bug Report] ValidationError: webpack Dev Server Invalid Options

[pSnehanshu]

Versions and Environment

Vuetify: 1.5.14
Vue: 2.6.10
Browsers: Chrome 73.0.3683.75
OS: Linux x86_64

Steps to reproduce

Step #1. Install vue-cli and vuetify.
Step #2. Run $ npm run serve

Expected Behavior

Should start webpack dev server.

Actual Behavior

ERROR ValidationError: webpack Dev Server Invalid Options

options.clientLogLevel should be {String} and equal to one of the allowed values

[ 'info', 'warn', 'error', 'debug', 'trace', 'silent' ]

(https://webpack.js.org/configuration/dev-server/#devserverclientloglevel)

Reproduction Link

https://codepen.io/Nothing_to_reporoduce

Other comments

Modify node_modules/@vue/cli-service/lib/commands/serve.js line 139. Set clientLogLevel to anything from 'info', 'warn', 'error', 'debug', 'trace', 'silent', the error goes away.

[pSnehanshu]

The solution can be found here: vuejs/vue-cli#4017 (comment)

[jacekkarczmarczyk]

This is vue-cli issue, not Vuetify