Dart / Flutter error: 'toStringDeep' isn't defined for the class 'Logger'

Question

Aye aye good people,

after several runs of debugging, suddenly... logging suddenly return me this error:

Compiler message: org-dartlang-debug:synthetic_debug_expression:1:1: Error: Method not found: 'toStringDeep'. toStringDeep() ^^^^^^^^^^^^ org-dartlang-debug:synthetic_debug_expression:1:1: Error: The method 'toStringDeep' isn't defined for the class 'Logger'. - 'Logger' is from 'package:logging/logging.dart' ('file:///C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/logging-0.11.3+2/lib/logging.dart').

"toStringDeep" isn't my stuff, probably used in logging; I tried to go back on my steps and remove the log(?) I've added, but still returns the same error.

any help? pretty please...

Francesco

Answer 1

I ran into a similar issue, for me It only happens with Android Studio's interface run/debug button. It was working fine with flutter run command.

But clearing out the build files/cache fixed the issue.

1. Android Studio:

Menu Tool > Flutter > Flutter Clean

 

2. OR run the command on CLI:

flutter clean

 

3. Using shortcut

It doesn't have a default key shortcut to run flutter clean, but you can add one easily.
I added ⌘ + H hotkey for flutter clean. You can define yours. Here is how:

1. Open Preferences/Settings.

2. Click on Keymap
3. Search for flutter clean.
4. Right click on Flutter Clean and select Add Keyboard shortcut

5. Add the keyboard short cut you prefer. I added Command + H

Now you can do it quicker.

Answer 2

When I get this error, I use "flutter clean" and it solves the problem.

Answer 3

alternatively, just remove the build folder.