Cannot inspect value of lists with null values in debugger #4790
Description
Describe the bug
When debugging, I get an error if I try to inspect the value of lists that contain a null value.
To Reproduce
Create main.dart with the following code:
void main() {
final List<String?> myList = [null];
print(myList.length);
}Set a breakpoint at the print statement and debug the code.
Hover over myList either in the code pane or the debug sidebar.
VS Code displays an error: type 'Null' is not a subtype of type 'Response' in type cast
Expected behavior
You see the value of the list [null]
Screenshots
Please complete the following information:
Workspace Environment
Dart Code extension: 3.75.20231009
Flutter extension: 3.74.0 (not activated)
App: Visual Studio Code
App Host: desktop
Version: win 1.83.0
Workspace type: Unknown (Dart SDK) (LSP)
Dart (3.1.3): C:\tools\dart-sdk
Flutter (undefined): undefined (No device)
Output from 'dart info'
C:\tools\dart-sdk\bin\dart.exe info
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General info
- Dart 3.1.3 (stable) (Tue Sep 26 14:25:13 2023 +0000) on "windows_x64"
- on windows / "Windows 10 Home" 10.0 (Build 22621)
- locale is en-US
Process info
| Memory | CPU | Elapsed time | Command line |
|---|---|---|---|
| 361 MB | -- | dart.exe | |
| 103 MB | -- | dart.exe | |
| 386 MB | -- | dart.exe | |
| 47 MB | -- | dart.exe | |
| 293 MB | -- | dart.exe | |
| 378 MB | -- | dart.exe | |
| 148 MB | -- | dart.exe | |
| 85 MB | -- | dart.exe |