I am creating a MVC application using EF 6.0.0.0 and ODP.Net Oracle.ManagedDataAccess version 4.121.2.0 for the data access.
6.0.0.0
Oracle.ManagedDataAccess
4.121.2.0
I
We had the same problem. What we found was a reference to the wrong database schema in the edmx file:
By deleting the schema name our issue was resolved.