Error trying to to Add Joins or Remove Joins: Object reference not set to an instance of an object

Product(s):	WaterGEMS, SewerGEMS
Version(s):	CONNECT Edition
Area:	Modeling
Environment:	ArcGIS Pro

Problem

When trying to Add Joins or Remove Joins, the following error message is generated:

System.NullReferenceException: Object reference not set to an instance of an object.

at Haestad.ArcGISPro.Library.ArcGISUtil.HasJoins(MapView mapView)

at System.Threading.Tasks.Task`1.InnerInvoke()

at System.Threading.Tasks.Task.Execute()

Solution

The issue is related to an issue geodatabase file To resolve the issue, you can try to move the saved all the .APRX and associated WaterGEMS or SewerGEMS files a new project name in a new folder.

If this doesn't help, the issue may be related to a specific layer that needs to be added to the map from the personal geodatabase file. Contact Bentley Technical Support to send the model files.

Reference #669479

Error trying to to Add Joins or Remove Joins: Object reference not set to an instance of an object

Problem

Solution

See Also