Error:

Assembly Oracle.DataAccess, Version=2.111.7.0, Culture=neutral, 
PublicKeyToken=89b483f429c47342 was not found. Reinstall the
assembly or Visual Studio. The application cannot continue and will exit.

Solution: Find Machine.config from C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config and comment every item related to oracle.

This will help

Thanks

Sam