GetvideoTag() not working.

[Shivampio]

AppComponent_Host.ngfactory.js? [sm]:1 ERROR TypeError: Cannot read property '__zone_symbol__addEventListener' of null

[honest-studio]

Same error!!!

Angular CLI: 9.1.4
Node: 12.16.2
OS: win32 x64

Angular: 9.1.4
... animations, cli, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router
Ivy Workspace: Yes

Package Version

@angular-devkit/architect 0.901.4
@angular-devkit/build-angular 0.901.4
@angular-devkit/build-optimizer 0.901.4
@angular-devkit/build-webpack 0.901.4
@angular-devkit/core 9.1.4
@angular-devkit/schematics 9.1.4
@angular/cdk 9.2.2
@angular/material 9.2.2
@ngtools/webpack 9.1.4
@schematics/angular 9.1.4
@schematics/update 0.901.4
rxjs 6.5.5
typescript 3.8.3
webpack 4.42.0

[jboz]

I had this problem and I solved it using ngAfterViewInit like this :

@ViewChild('lessonVideo')
private matVideo: { getVideoTag: () => HTMLVideoElement };

[...]

ngAfterViewInit(): void {
  this.matVideo.getVideoTag().addEventListener('ended', () => this.store.dispatch(new ReadNextVideo()));
}

I can't import MatVideoComponent 😢 :

import { MatVideoComponent } from 'mat-video'; // <= Module '"node_modules/mat-video/mat-video"' has no exported member 'MatVideoComponent'.

so I describe it's interface :

{ getVideoTag: () => HTMLVideoElement }

And it's work ! 😄

[Shivampio]

Thanks for your reply, i will try it definitely.