>>Hi everybody,
>>
>>I tried to add a new class to my project. Now I'm getting these errors in some of my pages:
>
>New class, or new project?
>
>At any rate, it's possible the 1.x version was added back into the web.config file. Check (and if so, remove it) from there.

Great minds think alike :) Yes, I already fixed the Web.config, but now I'm getting a new error

Error 214 The type 'skmControls2.GridView' exists in both 'c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\fcadmin\868c8591\eb7bc28a\assembly\dl3\baf91415\a651e021_52b4c801\skmControls2.DLL' and 'c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\fcadmin\868c8591\eb7bc28a\App_Code.ps3jegmz.dll' C:\Development\Visual Studio Projects\WebSites\FCAdmin\Coordinator\People\Registration.aspx 1 1 C:\...\FCAdmin\

Looks like I have to add a reference to the new library in the references section of the project (as Gregory suggested). What do you think?

Thanks again.