When I try to open any panel in DebugKit, CakePHP logo just keeps spinning and I can see there is an error in console. This is the error that I get :
Call to undefined method App\Controller\Component\MyComponent::configKey()
Which is strange because this component works totally fine and it doesn't show any errors when I use it in the application.
MyComponent, always use the real ones, as you figured the name was the problem here - thanks! - ndm