Oracle's support for Entity Framework Database First and Model First has the following version requirement:

• Microsoft Entity Framework 6.4

• Microsoft .NET Framework 4.8

• ODP.NET, Managed Driver

If using Visual Studio tools, then install Oracle Developer Tools for Visual Studio.

Oracle's support for Entity Framework Code First has the following version requirements:

• Microsoft Entity Framework 6.4

• Microsoft .NET Framework 4.8

  Projects must set the target framework to a supported .NET Framework version. This can be done by modifying the project's properties in Visual Studio.

• ODP.NET, Managed Driver