Error 122 The type 'Telerik.Reporting.TextBox' exists in both 'c:\Windows\assembly\GAC_MSIL\Telerik.Reporting\2.0.1.0__a9d7983dfcc261be\Telerik.Reporting.dll' and 'c:\Windows\assembly\GAC_MSIL\Telerik.Reporting\1.5.0.0__a9d7983dfcc261be\Telerik.Reporting.dll' C:\inetpub\wwwroot\casweb\App_Code\Report1.cs 30 31 http://localhost/casweb/