he execution of the remedy action. Please note
  that it is not sufficient to simply queue the error event as other events
  could still be pending. Instead, the error event has absolute priority and
  has to be dealt with immediately. There are slightly less cumbersome
  approaches to FSM error handling but these usually necessitate a change of
  the statechart layout and thus obscure the normal behavior. No matter what
  approach is used, programmers are normally forced to write a lot of code
  that deals