Import MqttModule Problem Angular 11

[Carlos Oliver Hernández Montejano]

Current behavior

When I add MqttModule.forRoot(MQTT_SERVICE_OPTIONS) in app.module.ts I get:

Expected behavior

No problems in localhost:4200

Environment

import { IMqttServiceOptions, MqttModule} from "ngx-mqtt";
import { environment as env } from '../environments/environment';

const MQTT_SERVICE_OPTIONS: IMqttServiceOptions = {
  hostname: env.mqtt.server,
  port: env.mqtt.port,
  protocol: (env.mqtt.protocol === "wss") ? "wss" : "ws",
  path: '',
};

imports: [
    ...
    MqttModule.forRoot(MQTT_SERVICE_OPTIONS),
   ...
  ],

ngx-mqtt version: 7.0.9

It is not possible to install the new version in Angular 11, because has the problem of Angular 11 compatibility with ngx-mqtt #17 issue.

[Sebastian Clausen]

Duplicated by #170