How do I resolve 'Id does not exist' error?

Question

Asked by LWB on April 03, 2021 (source).

So I am building a calculator with flutter and after changing some of my code, I have been getting this error whenever I hot restart, I get this error:

======== Exception caught by Flutter framework =====================================================
The following assertion was thrown during a service extension callback for "ext.flutter.inspector.setSelectionById":
Id does not exist.

When the exception was thrown, this was the stack: 
#0      WidgetInspectorService.toObject (package:flutter/src/widgets/widget_inspector.dart:1283:7)
#1      WidgetInspectorService.setSelectionById (package:flutter/src/widgets/widget_inspector.dart:1345:25)
#2      WidgetInspectorService._registerServiceExtensionWithArg.<anonymous closure> (package:flutter/src/widgets/widget_inspector.dart:864:35)
#3      WidgetInspectorService._registerServiceExtensionWithArg.<anonymous closure> (package:flutter/src/widgets/widget_inspector.dart:861:17)
#4      BindingBase.registerServiceExtension.<anonymous closure> (package:flutter/src/foundation/binding.dart:597:32)
...

====================================================================================================

I have no clue what the error means and I cant find and answer to it anywhere. The only thing I can infer is that it is possibly something with the inspector due to "ext.flutter.inspector.setSelectionById" but I honestly have no idea. I also believe it might not be to do with my code since it doesn't reference anything in there. I would extremely appreciate if anyone could at least help me understand the error. If you need more details, just ask me.

Answer

Question answered by user14624595 (source).

The error was probably due to Flutter Dev Tools being open.

DART FLUTTER
SHARE: