Im trying to add an edmx model in my. Net project that is connected to an oracle db.
I have installed the oracle developer tools for vs2017 and oracle client 12.1.
After i set up the connection string in and want to generate the edmx i get an error: "operation failed due to current state of the object" and i can't find the solution..
I've tried reinstalling both vs2017, oracle client and oracle developer tools but none of it worked..
Thank you in advance!
Did you try this link: It's explaining how to configure entity framework 6 with database-first and oracle.
And also I found this solution for the error you get: "Operation is not valid due to the current state of the object" when trying to add a new connection in Visual Studio 2017