'Overloads the default hook to implement a simple default error message.
Args:
traversing_object (Object): The object that failed traversing us.
Notes:
Using the default exits, this hook will not be called if an
Attribute `err_traverse` is defined - this will in that case be
read for an error string instead.'

def at_failed_traverse(self, traversing_object):

    traversing_object.msg('You    cannot    go    there.')
