Statechart Checks : (C2039) Junction, selection, condition, or diagram connectors with entrances but no exit

(C2039) Junction, selection, condition, or diagram connectors with entrances but no exit

There are junction, selection, or condition connectors or a group of in-page diagram connectors with the same name, having entrances but no exit. Therefore, there is no compound transition between states, including the entering transitions.
Error In:
Completeness
Erroneous Elements:
Connectors