This page is missing a HtmlHead control which is required for the CSS
stylesheetlink that is being added. Please add <head runat="server" />.
i have given runat="server" but issue does not resolve what is issue how it will be resolved.
i get this error after providinf runat=server
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NotSupportedException: This page is missing a HtmlHead control which is required for the CSS stylesheet link that is being added. Please add "server">.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[NotSupportedException: This page is missing a HtmlHead control which is required for the CSS stylesheet link that is being added. Please add "server">.]
AjaxControlToolkit.ScriptObjectBuilder.RegisterCssReferences(Control control) +249
AjaxControlToolkit.ExtenderControlBase.OnPreRender(EventArgs e) +135
System.Web.UI.Control.PreRenderRecursiveInternal() +77
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