Pfthb

I have a tabBarView with a listview in one of the tabs.I have the gesture detector below inside the listview. I am trying to show some newtwork videos.

VideoPlayerController playercontroller;
VideoPlayerController retcontroller(String varainatVideo)
 if(playercontroller == null)
 playercontroller = VideoPlayerController.network(varainatVideo);
 
 return playercontroller;
 

GestureDetector(
child:AspectRatio(
aspectRatio: 16/9,
child:Stack(
children:<Widgets>[

Chewie(

 retcontroller(stringVideo),

 cupertinoProgressColors: ChewieProgressColors(),
 showControls:false,
 ),

 ]
 )
 )
);

whenever I switch from that tab bar to another and try to navigate to another page in the second tabBar I get a black screen instead of the normal page.but when I remove the videoPage I dont get this problem and get this in the console

I/flutter (19985): Another exception was thrown: There are multiple heroes that share the same tag within a subtree.
I/flutter (19985): Another exception was thrown: There are multiple heroes that share the same tag within a subtree.

logs from the Debug console:
I have tried to figure out what, but I cant seem to get the Hero Tag associated with the videoPlayerController in order to set it to null.

I/flutter (19985): ══╡ EXCEPTION CAUGHT BY SCHEDULER LIBRARY ╞═════════════════════════════════════════════════════════
I/flutter (19985): The following assertion was thrown during a scheduler callback:
I/flutter (19985): There are multiple heroes that share the same tag within a subtree.
I/flutter (19985): Within each subtree for which heroes are to be animated (typically a PageRoute subtree), each Hero
I/flutter (19985): must have a unique non-null tag.
I/flutter (19985): In this case, multiple heroes had the following tag:
I/flutter (19985): VideoPlayerController#3144c(VideoPlayerValue(duration: null, size: null, position: 0:00:00.000000,
I/flutter (19985): buffered: , isPlaying: false, isLooping: false, isBuffering: falsevolume: 1.0, errorDescription:
I/flutter (19985): null))
I/flutter (19985): Here is the subtree for one of the offending heroes:
I/flutter (19985): # Hero(tag: VideoPlayerController#3144c(VideoPlayerValue(duration: null, size: null, position: 0:00:00.000000, buffered: , isPlaying: false, isLooping: false, isBuffering: falsevolume: 1.0, errorDescription: null)), state: _HeroState#b5c8f)
I/flutter (19985): # └KeyedSubtree-[GlobalKey#44acd]
I/flutter (19985): # └AspectRatio(aspectRatio: 1.7, renderObject: RenderAspectRatio#78caa relayoutBoundary=up2)
I/flutter (19985): # └VideoPlayer(state: _VideoPlayerState#62908)
I/flutter (19985): # └Container
I/flutter (19985): # └LimitedBox(maxWidth: 0.0, maxHeight: 0.0, renderObject: RenderLimitedBox#9e9b5)
I/flutter (19985): # └ConstrainedBox(BoxConstraints(biggest), renderObject: RenderConstrainedBox#1b4cb)
I/flutter (19985):
I/flutter (19985): When the exception was thrown, this was the stack:
I/flutter (19985): #0 Hero._allHeroesFor.visitor.<anonymous closure> (package:flutter/src/widgets/heroes.dart:191:13)
I/flutter (19985): #1 Hero._allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:201:10)
I/flutter (19985): #2 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:4784:14)

you should not use singleton VideoPlayerController for multiple Chewie instance, Chewie use controller(the first arguments) as hero's tag