server error or parser

Question

Server Error in '/' Application. Parser Error Description:  An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.
Parser Error Message:  Could not load file or assembly 'AjaxControlToolkit' or one of its dependencies. The system cannot find the file specified.
Source Error:
Line 1:
Line 2:
Line 3:
Line 4:
Line 5:
Source File:  /gajnanicollection/ajaxpage.aspx     Line:  3
Assembly Load Trace:  The following information can be helpful to determine why the assembly 'AjaxControlToolkit' could not be loaded.
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
Version Information:  Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.17929

venkata kumar · Answer

hi
i think you need to add dll of ajax tool kit in references.