Invalid reference database name provided in Dynamic Mapper block.

Invalid reference database name provided in Dynamic Mapper block.

If database block linked to Dynamic Mapper block is invalid, then the following error will be generated. 

"VisualSim.kernel.util.IllegalActionException: Problem Reading Database from Memory.
Memory Name: SchedulerList1
  in .DynamicMapper_Invalid_Database_Block_Name.DynamicMapper
at VisualSim.actor.lib.Task_Software.initialize(Unknown Source)
at VisualSim.actor.Director.initialize(Unknown Source)
at VisualSim.simulators.de.kernel.DEDirector.initialize(Unknown Source)
at VisualSim.actor.CompositeActor.initialize(Unknown Source)
at VisualSim.actor.Manager.initialize(Unknown Source)
at VisualSim.actor.Manager.execute(Unknown Source)
at VisualSim.actor.Manager.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)
at VisualSim.kernel.util.VisualSimThread.run(Unknown Source) "  


Solution: Make sure to add valid database name in the Database_Lookup parameter.