In my application, i'm connecting to an Oracle DB via ODP. I was using .NET 4.5 and everything was working fine but then for Windows XP compatibility i changed framework to .NET 4.0 on all the projects on my solution. Application is built on .NET 4.0 succesfully but can not connect to DB via ODP and throws exception:
Could not load file or assembly 'Oracle.DataAccess, Version=2.112.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342' or one of its dependencies. An attempt was made to load a program with an incorrect format.
I had created a References folder in Solution folder(near projects) and adding the Oracle.DataAccess.dll file as reference from there to the projects those use it. May it be the problem?
In the main(winforms) project of the solution i changed the platform target from any CPU to x86 and now it's working on .NET 4.0.