render error

[alwaynewbeee]

my App.js file

 import {
  RTCPeerConnection,
  RTCIceCandidate,
  RTCSessionDescription,
  RTCView,
  MediaStream,
  MediaStreamTrack,
  mediaDevices,
  registerGlobals
} from 'react-native-webrtc';

import Peer from "react-native-peerjs"

 class App extends Component{
  constructor(props){
    super(props);
    }
  componentDidMount(){
     
     const self_peer = Peer(undefined, { key: 'key',
     host: 'localhost',
     port: 9000,
     path: '/path'})

  }


   render(){
     return (
       <View>
        </View>

     );}
 };


 export default App;

having runing app and occur error
like this

 ERROR  TypeError: undefined is not an object (evaluating 'this._events = new n()')

This error is located at:
    in App (at renderApplication.js:47)
    in RCTView (at View.js:34)
    in View (at AppContainer.js:107)
    in RCTView (at View.js:34)
    in View (at AppContainer.js:134)
    in AppContainer (at renderApplication.js:40)

if i make mistake, alter me please

[alwaynewbeee]

 const self_peer = Peer(undefined, { key: 'key',
     host: 'localhost',
     port: 9000,
     path: '/path'})

if i subtract this code, app run well