# Custome plugin for android

**URL:** <https://forum.ionicframework.com/t/custome-plugin-for-android/164851>\
**Category:** Ionic Native\
**Created:** [May 27, 2019, 12:44pm UTC](https://forum.ionicframework.com/t/custome-plugin-for-android/164851 "2019-05-27T12:44:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![venkibendi](https://avatars.discourse-cdn.com/v4/letter/v/59ef9b/32.png) [@venkibendi](https://forum.ionicframework.com/u/venkibendi)\
**Post date:** [May 27, 2019, 12:44pm UTC](https://forum.ionicframework.com/t/custome-plugin-for-android/164851/1 "2019-05-27T12:44:03Z")

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Hi I have developed a plugin in Android, now I am trying to integrate into ionic 4 apps, I have followed below steps to integrate the plugin in ionic 4

1. create wrapper like below  
import { Injectable } from ‘@angular/core’;  
import { Plugin, Cordova, CordovaProperty, cordovaInstance, IonicNativePlugin} from ‘@ionic-native/core’  
@Injectable()  
export class SyncService extends IonicNativePlugin {  
//provide entry for plugin functions  
static pluginName = ‘synPlguin’;  
static plugin = ‘cordova-aspolar-plugin-signal-strength’;  
static pluginRef = ‘window.plugins.signalStrength’;  
static repo = ‘[https://github.com/JVasconsueloM/aspolar-signal-strength](https://github.com/JVasconsueloM/aspolar-signal-strength)’;  
static platforms = [‘Android’]  
@Cordova()  
add(arg:any):Promise{  
return;  
}  
}

after integrating this, I am getting followed the issue

**Uncaught TypeError: Object(…) is not a function**

Please help me out how to solve this,  
Thank in advance …