Ionic - Runtime Error this.fba.logEvent(...).then is not a function - ionic-framework

Question

I am using Ionic and Firebase. I have created firebase project, clicked on icon to "add fire to your android app" and followed the steps.
Foll. is code on my html page:
<ion-header>
<ion-navbar>
<ion-title>
Ionic Blank
</ion-title>
</ion-navbar>
</ion-header>
<ion-content padding>
Firebase Analytics
<p>
Click the button to log a custom event
</p>
<button ion-button full (click)="logClick()">Log event</button>
</ion-content>
Below code is on the ts of this page:
import { Component } from '#angular/core';
import { NavController } from 'ionic-angular';
import { EventLoggerProvider } from '../../providers/event-logger/event-logger';
#Component({
selector: 'page-home',
templateUrl: 'home.html'
})
export class HomePage {
constructor(public navCtrl: NavController,
public logger: EventLoggerProvider) {
}
logClick() {
this.logger.logButton('homeButton',{ pram: "paramValue" })
}
}
Foll. code is in the provider:
import { HttpClient } from '#angular/common/http';
import { Injectable } from '#angular/core';
import { FirebaseAnalytics } from '#ionic-native/firebase-analytics';
#Injectable()
export class EventLoggerProvider {
constructor(public fba: FirebaseAnalytics) {
console.log('Hello EventLoggerProvider Provider');
}
logButton(name:string,value:any){
this.fba.logEvent(name, { pram:value })
.then((res: any) => {console.log(res);})
.catch((error: any) => console.error(error));
}
}
I ran "ionic cordova run android" and launched the app on mobile device and everything seems to be OK. However, when I do "ionic serve", the page loads OK in the browser, but when I click the button, what could have caused it to give the foll. error?
Ionic - Runtime Error this.fba.logEvent(...).then is not a function

Answer 1

Now its more clear after seing the code.
import { FirebaseAnalytics } from '#ionic-native/firebase-analytics';
#ionic-native functions only work on the real device or simulator. Otherwise, it will give an error.