This command brings up a dialog box with information about the last simulation error. Such errors may occur e.g., during simulations on models with event nodes. If DynRisk is the active application, this dialog box will appear automatically if an error occurs, so in this case you normally do not need this command.
Typical errors are time-out errors if the target applications spent too much time on serving your request, errors because you forgot to launch the target application before the event was sent, correlation errors or warnings etc.
