vscode WPF Designer exited with code 2147516547

=== Launching Designer ===   Exe      : c:\Users\someone\.vscode\extensions\lextudio.vscode-wpf-0.9.17\tools\XamlDesigner\AvalonDock.dll   Pipe     : XamlDesigner-1786413893179   Args     : --callback              XamlDesigner-cb-1786413893179              d:\dev\wpftester\MainWindow.xaml              d:\dev\wpftester\bin\Debug\net10.0-windows\wpftester.dll Designer exited with code 2147516547.

Solution -->

Edit VS Code settings.json file

Ctrl+Shift+P → Preferences: Open User Settings (JSON)

Add next line

"wpf.designerExecutable": "C:\\Users\\someone\\.vscode\\extensions\\lextudio.vscode-wpf-0.9.17\\tools\\XamlDesigner\\Demo.XamlDesigner.dll"

After completely restarting VS Code, launch the WPF Designer.