Vue 2.5 introduces the vue-class-component extension, which utilizes the Vue namespace as a Type definition

After updating my Vue 2.0 Typescript project that utilizes vue-class-component to Vue 2.5, I encountered the following error in the declaration file:

ERROR in /myproject/node_modules/vue-class-component/lib/declarations.d.ts

(6,33): error TS2702: 'Vue' only refers to a type, 
but is being used as a namespace here.

It appears that the declaration.d.ts file is using Vue as a namespace:

options: Vue.ComponentOptions<Vue>

How can this be resolved? Could it be an oversight or bug in the declaration file of vue-class-component?

The entire declaration file is as follows:

import Vue from 'vue';
export declare type VueClass = {
    new (): Vue;
} & typeof Vue;
export declare type DecoratedClass = VueClass & {
    __decorators__?: ((options: Vue.ComponentOptions<Vue>) => void)[];
};

Answer №1

To resolve the issue, I specifically imported componentoptions and it resolved the problem successfully:

import Vue from 'vue';
import {ComponentOptions} from 'vue'

let options : ComponentOptions<Vue>;

Answer №2

The declaration files for Vue have been recently refreshed, so it is important to ensure that both vue-class-component and vue are current. Due to this update, you may need to reference types in the following manner:

import Vue, * as VueTypes from "vue"

let x: VueTypes.ComponentOptions<any>;

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