Could not load file or assembly 'System.Data.OracleClient
I am currently trying to debug an Asp.net 2.0 project with a c# code behind, without receiving errors, in Chrome through Visual Studio 2012. The solution was originally created in VS 2005 and upgraded/imported it into VS 2012. However, I am encountering this error when I attempt to run the solution:
Could not load file or assembly 'System.Data.OracleClient, Version=220.127.116.11, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
I have added references to System.Data.OracleClient to each of the projects within the solution, but this has not resolved the issue. Additionally, I have checked the GAC (Global Assembly Cache) for a reference to the assembly (System.Data.OracleClient); it is present. I have also added a reference to the assembly (<add assembly="System.Data.OracleClient, Version=18.104.22.168, Culture=neutral, PublicKeyToken=b77a5c561934e089" >) to the web.config file for version 2.0 of .Net (C:\WINNT\Microsoft.NET\Framework\v2.0.50727\CONFIG\web.config). I noticed that the project seems to look for the dll in the bin folder of the solution, so I have copied the dll from the GAC to the bin. None of the above steps have resolved the issue. I continue to receive the same error message when the solution is debugged. Any answers or suggestions you could provide would be greatly appreciated. Thank you in advance.
Uninstalling the assembly
Thank you for the timely response. So, I tried to uninstall the System.Data.OracleClient assembly, but I receive the message that I can not remove becaues it is used by the .Net framework.