PlatformException

[gxh-apologize]

I/flutter (22346): ══╡ EXCEPTION CAUGHT BY SERVICES LIBRARY ╞══════════════════════════════════════════════════════════ I/flutter (22346): The following PlatformException was thrown while activating platform stream on channel I/flutter (22346): sk.fourq.ota_update: I/flutter (22346): PlatformException(error, Attempt to invoke virtual method 'java.lang.String I/flutter (22346): java.lang.Object.toString()' on a null object reference, null) I/flutter (22346): I/flutter (22346): When the exception was thrown, this was the stack: I/flutter (22346): #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:569:7) I/flutter (22346): #1 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:321:33) I/flutter (22346): <asynchronous suspension> I/flutter (22346): #2 EventChannel.receiveBroadcastStream.<anonymous closure> (package:flutter/src/services/platform_channel.dart:517:29) I/flutter (22346): #4 EventChannel.receiveBroadcastStream.<anonymous closure> (package:flutter/src/services/platform_channel.dart:503:64)

I use this plug which version is 2.2.1 , but a PlatformException occurs .Please give some suggests ,thanks.

[wrl96]

The "destinationFilename" is required.
Stream<OtaEvent> execute(String url, {String androidProviderAuthority, String destinationFilename})

[gxh-apologize]

@wrl96 The problem has been solved. Thank you.