35:1 Unable to resolve signature of class decorator when called as an expression.
  Type '<VC extends VueClass<Vue>>(target: VC) => VC' is missing the following properties from type 'typeof HelloWorld': exte
nd, nextTick, set, delete, and 7 more.
    33 | import { Component, Prop, Vue } from 'vue-property-decorator';
    34 |
  > 35 | @Component
       | ^
    36 | export default class HelloWorld extends Vue {
    37 |   @Prop() private msg!: string;
    38 | }