declare module 'vue/types/vue' {
  interface Vue {
    $axios: AxiosInstance
    $dict: Dict
    $utils: object
  }
}

the answer on the first floor is feasible. Create a new .d.ts file and put it in the src/ directory. If you still report something wrong, just turn off ied, and restart ide. I use vscode

declare module 'vue/types/vue' {
  interface Vue {
    $axios: AxiosInstance
    $dict: Dict
    $utils: object
  }
}

ide/typescript.html-sharp%E5%A2%9E%E5%BC%BA%E7%B1%BB%E5%9E%8B%E4%BB%A5%E9%85%8D%E5%90%88%E6%8F%92%E4%BB%B6%E4%BD%BF%E7%94%A8" rel=" nofollow noreferrer "> https://cn.vuejs.org/v2/guide.

https://blog.csdn.net/qq_2474.
there is an item in this table. There are some examples. I have said that I can

item: https://github.com/wowill/vue.

I really can't add / / @ ts-ignore . I've tried the previous "useful" method, but restarting vscode still won't work. If anyone has a better way, please let me know.

Thank you for the answer from layer 2L.
although it has been a long time, by the way, it saves some people the same detours. Two key points:

Create a new * .d.ts file under the
• src directory. (if you write it in shims-vue, it will cause an error in main.ts.)
• restart IDE (vscode). If you do not restart, there are occasional problems that do not take effect

the answer to the landlord is as follows:

import VueRouter, { Route } from 'vue-router'
// 
declare module 'vue/types/vue' {
  interface Vue {
    $router: VueRouter;
    $route: Route;
    $api: any;
  }
}