Issue
You attempted to create an object with a name that is already being used by an object of that type.
Environment
LNS
NL220
LonMaker
Vista
Cause
For example, the name assigned to all LonMarkObject objects must be unique. Therefore, if you use the Add method to create a LonMarkObject and specify a name that is already being used by another LonMarkObject, this exception will be thrown
Resolution
Name LonMarkObject as something unique.