Not able to use SharePoint DatePicker inside Update Panel

Hi,

I have a visual webpart page, in which I have added an update panel. Inside the Update Panel, I have added the SharePoint datetime picker. On clicking the datepicker, i am getting server error "in / Application."

I have tried like this:

<SharePoint:DateTimeControl ID="dtcDate" runat="server" ToolTip="Please enter Date" DateOnly="true" />

I have added this statement on top of the page,after the register scripts are added:

<script type="text/javascript" src="/_layouts/15/datepicker.js"></script>

How to use the Sharepoint datepicker inside an updatepanel?

Thanks