There might raise situations in your Project where you might be interested to check if the ViewModel specified has a corresponding View defined and gradefully handle the error, than throwing an exception.
Caliburn Micro’s ViewLocator class provides you methods that enables you to do exactly that.
if ((ViewLocator.LocateForModelType(typeof(DummyViewModel), null, null) is TextBlock tb && tb.Text.StartsWith("Cannot find", StringComparison.InvariantCultureIgnoreCase))) { // View does not exist, Terminate or redirect to another } else { // View found, redirect to intended one }