[Vuejs]-How to get rid of error when using class inside class in TypeScript?

0👍

✅

You basically never instantiate leadService field of GpbApi if I am see it correctly.

So, you should instantiate loadService field in gpbApi

class GpbApi {
  leadService = leadService;
}

[Vuejs]-Vue 3 Migration Build with Typescript throwing export 'default' (imported as 'Vue') was not found in 'vue' warning

0👍

I would suggest removing typeof word from interface properties declaration like:

interface Vue {
  $gpbApi: gpbApi;
}

and the same with class definition:

class GpbApi {
  leadService!: leadService;
}

[Vuejs]-Vue 3 Migration Build with Typescript throwing export 'default' (imported as 'Vue') was not found in 'vue' warning