nerdsarena

every time i run onTokenRefresh method to get the voip token it's return null value what's the problem ? this happened after migrate to null safety

MissingPluginException(No implementation found for method listen on channel plugins.voximplant.com/call_controller_events)

4

When the exception was thrown, this was the stack: #0 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:156:7) #1 EventChannel.receiveBroadcastStream. (package:flutter/src/services/platform_channel.dart:545:9)

The following MissingPluginException was thrown while activating platform stream on channel plugins.voximplant.com/plugin_events: MissingPluginException(No implementation found for method listen on channel plugins.voximplant.com/plugin_events) When the exception was thrown, this was the stack:...