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Extender controls of type 'AjaxControlToolkit.HoverMenuExtender' cannot extend controls of type 'System.Web.UI.HtmlControls.HtmlGenericControl'

description

Upgraded toolkit to version 15.1.4.0, pointed to new dll in Visual Studio (2013) and get this error when running asp.net website in debug:

Extender controls of type 'AjaxControlToolkit.HoverMenuExtender' cannot extend controls of type 'System.Web.UI.HtmlControls.HtmlGenericControl'

here is the aspx code:
<div id="MainNavigationDiv" runat="server"> <ul> <li runat="server" id="XYZ_aspx" class="hoverpopupVx" > <a class="hoverpopupVx">XYZ Menu Item</a> </li> </ul> </div> <cc1:HoverMenuExtender ID="HoverMenuExtenderComplaints" runat="server" TargetControlID="XYZ_aspx"
 PopupControlID="XYZPanel" PopupPosition="Bottom" OffsetX="0"
 OffsetY="0" PopDelay="0" HoverCssClass="hoverpopupV">
</cc1:HoverMenuExtender>
Closed Mar 10, 2016 at 5:17 PM by MikhailTymchukDX
This issue was moved to GitHub as a part of the AJAX Control Toolkit migration process.
Please follow this link to continue working on the issue: https://github.com/DevExpress/AjaxControlToolkit/issues/3

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