![macbook widgets missing plug-in macbook widgets missing plug-in](https://static.macupdate.com/screenshots/272527/m/caffeine-screenshot.png)
Produces below error logs Logs E/flutter ( 3705): Unhandled exception:Į/flutter ( 3705): MissingPluginException(No implementation found for method Query#observe on channel /firebase_database)Į/flutter ( 3705): #0 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:153:7)Į/flutter ( 3705): #1 Query._observe.
![macbook widgets missing plug-in macbook widgets missing plug-in](https://149493502.v2.pressablecdn.com/wp-content/uploads/2020/12/how-to-bring-calculator-in-macos-big-sur-dock.jpg)
once() //exception thrown hereĬategorySnap. categoryTablename) įuture categorySnap = database. Final FirebaseDatabase database = new FirebaseDatabase(app : app)