in my friend's laptop I have ASP.NET Web Forms (.NET 4.0) project and he is working like a charm on it. but when I copied that project to my laptop, I get this error:
The provider is not compatible with the version of Oracle client
I get the Oracle.DataAccess.dll from friend's laptop and add it to the References, Install Oracle Client 11.2.0, but the error was not gone. Oracle Client version on both laptops are same, but I downloaded my from oracle site, he installed own before. my system is Windows 8.1 Pro, x64.