Catchment basin shows up under 'Validate' but doesn't exist and produces an error

Question

I'm having an issue where a catchment basin has been removed/deleted before but still shows up when I validate or analyze my collection system, which is leading to an error. Message Id: 44008, Message: The catchment is active but there is no outflow element specified, or the element is invalid or deleted. 
 I have tried double clicking and right clicking to 'zoom to' this catchment but it seems like it doesn't exist. However it still shows up in the flex tables. Is there a way to remove this?

Sushma Choure · Answer

Hello Quyen, 
 Can you please try to double click on the user notification - The catchment is active but there is no outflow element specified and check properties window if it appears to see if the catchment is inactive by any chance under active topology. 
 Also double click again on this notification and hit delete. 
 If this does not help, then please try following, 
 
 Compact database, File>Database utilities>Compact Database 
 Copy only .sqlite & .stsw.sqlite files to a new folder and open model from new location. 
 File>Import>SewerGEMS /CivilStorm / StormCAD Database into a new file.

Jesse Dringoli · Answer

Another possible option - if you see the catchment in question in the cactchment flextable, right click on the row header, choose "zoom to" (this should select it in the drawing) then right click (either on the catchment itself or in a blank space) and choose Delete. See #5 in this article.

Regards,

Jesse Dringoli
Technical Support Manager, OpenFlows
Bentley Communities Site Administrator
Bentley Systems, Inc.