A command handler extension was not found. Either the plug-in containing the handler extension is not installed or the wrong
               handler ID was modeled.
               	 
            
 
            	 
             
               		 
               		  
               - Model Administrator Response:
                  		  
               
  
               		  
               -  Verify that a handler extension ID is required for the command. If not, remove the parameter (it is optional). If yes, verify
                  that the plug-in containing the extension is correctly installed.