I am working on a model in ArcMap (10.4.1) that calculates habitat suitability over a series of timesteps. The data needed to calculate habitat suitability at each timestep is stored in a specific table located in a Microsoft Access database (.mdb file).
When I tried to execute this join, I get the following error:
ERROR 999999: Error executing function. The Microsoft Jet database engine cannot find the input table or query 'GDB_ObjectClasses'. Make sure it exists and that its name is spelled correctly. Failed to execute (Add Join).
What is most confusing to me is that under a previous iteration of this model, I was able to join these tables without issue. I understand that with the newer versions of ArcMap there has been some reorganization of how GDB are structured, but I don't know enough to figure out what is really happening here.