Failure to update model from database using EF 5 and VS 2015

Question

I have a C# application using Oracle database and Entity Framework 5. Oracle client is version 12c R1. My application uses database first approach. I'm trying to run the app using Visual Studio Enterprise 2015. When I access the edmx file and I try to update the model from the database, it gives me the following error:

An exception of type 'System.ArgumentException' occurred while attempting to update from the database. The exception message is: 'Unable to convert runtime connection string to its design-time equivalent. The libraries required to enable Visual Studio to communicate with the database for design purposes (DDEX provider) are not installed for provider 'Oracle.DataAccess.Client'. Connection string: XXXXX.

This error does not occur when I use Visual Studio Ultimate 2013. Only on Visual Studio Enterprise 2015.

Is there any known incompatibility issue with the new one?

Answer 1

I believe it is because not yet out ODT version compatible with Visual Studio 2015. Wait or will have no choice for now?

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