An exception of category 'ScheduleExecutionFailure' occurred while
   [0] Calling beginJob
Exception Message:
Unrunnable schedule
The Path/EndPath configuration could cause the job to deadlock
  module 'a' is on path 'p1' and depends on module 'b'
  module 'b' is in a task and depends on module 'c'
  module 'c' is on path 'p2' and depends on module 'd'
  module 'd' is in a task and depends on module 'a'
