Sass-loader error 'options has an unknown property 'indentedSyntax'' when upgrading Vuetify from 1.5 to 2

Question

I am upgrading Vuetify in my Vue CLI 3 project from version 1.5 to 2. I have followed these instructions, doing a full install. Since the upgrade, running \'npm run serve\'

Answer 1

Update for those using version 10+. prependData is no longer valid. However you can use additionalData as a drop-in replacement.