How to fix 'Use of app.config binding redirects requires full trust'

To resolve the "Use of app.config binding redirects requires full trust" error, check the project security settings:

1. Go to Project Properties.
2. Navigate to the Security tab.
3. Ensure that the project is set to full trust.

If the "Enable ClickOnce Security Settings" option is checked, uncheck it or ensure the security level is set to Full Trust to avoid restricted trust issues that prevent binding redirects from working correctly.