i want to trigger client to client event when pusher successfully subscribe on a presence channel but i cache this error in try catch block "Event is not for this channel"

[mehdidavar]

this is my method

Future testTrigger() async {
try{
await channel.trigger(PusherEvent(channelName: currentChannelName,eventName: "client-my-event", ));

}catch(e){
debugPrint(e.toString());
}
}

[benw-pusher]

You can read about how to trigger an event at https://github.com/pusher/pusher-channels-flutter#triggering-events. Looking at the parameters you are using (channelName: currentChannelName,eventName: "client-my-event", ) it appears you are triggering using the global pusher instance - however you are also using channel.trigger which means you are triggering directly on the channel.
What happens if you use await pusher.trigger(channelName: currentChannelName, eventName: "client-my-event", data: ["myName": "Bob"]);

[mehdidavar]

i modify my code to

Future<void> testTrigger() async {
try{
 // await ch.trigger(PusherEvent(channelName: currentChannelName,eventName: "client-my-event", ));
  await pusher.trigger(PusherEvent(channelName: currentChannelName, eventName: "client-my-event", data: {"myName": "Bob"}));
}catch(e){
  debugPrint(e.toString());
}
 } 

but got this

PlatformException(error, java.util.HashMap cannot be cast to java.lang.String, null, java.lang.ClassCastException: java.util.HashMap cannot be cast to java.lang.String
at com.pusher.channels_flutter.PusherChannelsFlutterPlugin.onMethodCall(PusherChannelsFlutterPlugin.kt:79)
at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:258)
at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295)
at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0(DartMessenger.java:322)
at io.flutter.embedding.engine.dart.DartMessenger.$r8$lambda$2j2MERcK825A5j1fv5sZ7xB2Iuo(Unknown Source:0)
at io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0.run(Unknown Source:12)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)

then i change method to

 Future<void> testTrigger() async {
try{
 // await ch.trigger(PusherEvent(channelName: currentChannelName,eventName: "client-my-event", ));
  await pusher.trigger(PusherEvent(channelName: currentChannelName, eventName: "client-my-event"));
}catch(e){
  debugPrint(e.toString());
}
 } 

and go this
java.lang.NullPointerException
at com.pusher.channels_flutter.PusherChannelsFlutterPlugin.onMethodCall(PusherChannelsFlutterPlugin.kt:79)
at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:258)
at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295)
at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0(DartMessenger.java:322)
at io.flutter.embedding.engine.dart.DartMessenger.$r8$lambda$2j2MERcK825A5j1fv5sZ7xB2Iuo(Unknown Source:0)
at io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0.run(Unknown Source:12)
at android.os.Handler.handleCallback(Handler.java:942)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:226)
at android.os.Looper.loop(Looper.java:313)
at android.app.ActivityThread.main(ActivityThread.java:8757)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1067)

[benw-pusher]

Can you try with this code as previously shared?

await pusher.trigger(channelName: currentChannelName, eventName: "client-my-event", data: ["myName": "Bob"]);

[mehdidavar]

yes i will inform you soon

[AhmedHusseinHafez]

same problem with me
i tried
await pusher.trigger(channelName: currentChannelName, eventName: "client-my-event", data: ["myName": "Bob"]);
as in flutter docs but i must have to pass PusherEvent
and still my problem not have solution
Future trigger(PusherEvent event)
Type: Future Function(PusherEvent)

i modify my code to

Future<void> testTrigger() async {
try{
 // await ch.trigger(PusherEvent(channelName: currentChannelName,eventName: "client-my-event", ));
  await pusher.trigger(PusherEvent(channelName: currentChannelName, eventName: "client-my-event", data: {"myName": "Bob"}));
}catch(e){
  debugPrint(e.toString());
}
 } 

but got this

PlatformException(error, java.util.HashMap cannot be cast to java.lang.String, null, java.lang.ClassCastException: java.util.HashMap cannot be cast to java.lang.String at com.pusher.channels_flutter.PusherChannelsFlutterPlugin.onMethodCall(PusherChannelsFlutterPlugin.kt:79) at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:258) at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295) at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0(DartMessenger.java:322) at io.flutter.embedding.engine.dart.DartMessenger.$r8$lambda$2j2MERcK825A5j1fv5sZ7xB2Iuo(Unknown Source:0) at io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0.run(Unknown Source:12) at android.os.Handler.handleCallback(Handler.java:938) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:223) at android.app.ActivityThread.main(ActivityThread.java:7656) at java.lang.reflect.Method.invoke(Native Method)

then i change method to

 Future<void> testTrigger() async {
try{
 // await ch.trigger(PusherEvent(channelName: currentChannelName,eventName: "client-my-event", ));
  await pusher.trigger(PusherEvent(channelName: currentChannelName, eventName: "client-my-event"));
}catch(e){
  debugPrint(e.toString());
}
 } 

and go this java.lang.NullPointerException at com.pusher.channels_flutter.PusherChannelsFlutterPlugin.onMethodCall(PusherChannelsFlutterPlugin.kt:79) at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:258) at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295) at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0(DartMessenger.java:322) at io.flutter.embedding.engine.dart.DartMessenger.$r8$lambda$2j2MERcK825A5j1fv5sZ7xB2Iuo(Unknown Source:0) at io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0.run(Unknown Source:12) at android.os.Handler.handleCallback(Handler.java:942) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loopOnce(Looper.java:226) at android.os.Looper.loop(Looper.java:313) at android.app.ActivityThread.main(ActivityThread.java:8757) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1067)

[benw-pusher]

await pusher.trigger(channelName: currentChannelName, eventName: "client-my-event", data: ["myName": "Bob"]);
This is working in my implementation so interested to see more about your implementation, can you share the full code and error?