CODEWITHSUNDEEP
angulartypescriptangular-promise
Jean-Baptiste
Jean-Baptiste

Reputation: 1562

'Promise' is not assignable to type 'Promise' error

I am new to Angular 2, and Angular as well, and I am running into this issue related to promises.

I have this file name module.service.ts

import { Injectable } from '@angular/core';
import { Module } from './module.entity';

@Injectable()
export class ModuleService {
  getModules(): Promise<Module[]> {
    // TODO: Switch to a real service.
    return Promise.resolve([{
      uiid: "text",
      type: "ahahaha"
    }]);
  }
}

Which call module.entity which contains this code: 

export class Module {
  uuid: string = '00000';
  type: string = 'TextComponent';
  // Maps ModuleSlots to modules
  submodules: {[key: string]: [Module]} = {};
}

But running npm starts returns this error to me:

Type 'Promise<{ uiid: string; type: string; }[]>' is not assignable to type 'Promise'. Type '{ uiid: string; type: string; }[]' is not assignable to type 'Module[]'. Type '{ uiid: string; type: string; }' is not assignable to type 'Module'. Property 'uuid' is missing in type '{ uiid: string; type: string; }'.

Can anybody gives me a hint about what's not working ?

Upvotes: 0

Views: 3868

Answers (1)

vpoverennov
vpoverennov

Reputation: 308

Error message already gives you a hint

Property 'uuid' is missing in type '{ uiid: string; type: string; }'

declaration:

uuid: string = '00000';
 ^^

value:

uiid: "text",
 ^^

Upvotes: 1

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