.net - ORACLE and Entity Framework. Error:the specified store provider cannot be found in the configuration or is not valid

Question

In my project I am using oracle and entity framework together.Both of my machines my developer machine win7 and my server win2008r2 I installed oracle beta entity framework and .net 4.0 framework.

However my projects works on local machine and does not work on server giving the error :

the specified store provider cannot be found in the configuration or is not valid 
SystemArgumentException unable to find the requested .net Framework data provider ...

Anyone can help me ?

Answer 1

In the Application Pool and Advanced Settings...

Have a look at the "Enable 32-Bit Applications" and see if it is enabled. It wasn't set on my Windows 7 64bit and I had the same issues.

I am guessing it might also be fixed by installing the 64bit ODAC but haven't tried that yet.