Some users see the below error when trying to connect from Data Modeler to Mart or they can successfully connect but get the error when trying to open a Mart model.
"Service Not Found"
The user most likely installed the wrong erwin client version. For example, if you try to connect erwin Data Modeler version 2020 R1 to a 2020 R1 SP1 or 2020 R2 Mart, you will see this error. Please make sure the version of erwin Data Modeler client matches the version of the mart server. The Data Modeler version can be found in Help -> About.