Session.publish doesn't work

Hi.
I don’t know why but when i implemented my code session.publish doesn’t work.

I create ionic app

I can create session i can create token i can connect to session but last step doesn’t work. It doesn’t fire any error or something.
this.publisher = this.OV.initPublisher(undefined, {
audioSource: undefined, // The source of audio. If undefined default microphone
videoSource: undefined, // The source of video. If undefined default webcam
publishAudio: true, // Whether you want to start publishing with your audio unmuted or not
publishVideo: true, // Whether you want to start publishing with your video enabled or not
resolution: ‘640x480’, // The resolution of your video
frameRate: 30, // The frame rate of your video
insertMode: ‘APPEND’, // How the video is inserted in the target element ‘video-container’
mirror: false // Whether to mirror your local video or not
});

// --- 6) Publish your stream ---
console.log(this.session);  -> can see at console
console.log(this.publisher); -> can see at console
this.publisher.on('streamCreated', (data) => {
  console.log(data);
});
this.publisher.on('remoteVideoPlaying', (data) => {
  console.log(data);
});
this.publisher.on('accessAllowed', (data) => {
  console.log(data);
});
this.publisher.on('accessDenied', (data) => {
  console.log(data);
});
this.session.publish(this.publisher as Publisher).then(() => {
  // Store our Publisher
  console.log('publis', this.publisher); -> can't see at console
  const sendData = {
    user: this.user._id,
    live: true,
    session: this.sessionId,
    openviSession: this.openviSession
  };
  this.api.createStream(sendData)
    .subscribe((res: any) => {
      this.selfStream = res;
    });
}, (err: any) => {
  console.log('err', err);-> can't see at console
}).catch((reject) => {
  console.log(reject);-> can't see at console
})

here is the code

Why this.publisher as Publisher?

My original code is
this.session.publish(this.publisher)
But it doesnt work

I recommend you to start with an official tutorial or demo and add or remove the things you need for your app.

Hi friend, have you found the fix for that issue?