SetModifiedFlag Error Message on Startup
Copyright © 2020 EarthSoft, Inc • Modified: 24 Feb 2020
On startup the following error message is provided:
Object reference not set to an instance of an object.
at vd_user_control.Control1.SetModifiedFlag(Boolean b)
This can occur if a version of Microsoft .NET is installed that is not compatible with EnviroInsite. As of December 2015, EnviroInsite 2014 needs to have Microsoft .NET 4 or later installed. The .NET installation files are available from http://www.microsoft.com/net.