[HttpException (0x80004005): The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).]
System.Web.UI.ControlCollection.Add(Control child) +11834023
Default2.Page_PreRender(Object sender, EventArgs e) +10059
System.EventHandler.Invoke(Object sender, EventArgs e) +0
System.Web.UI.Control.OnPreRender(EventArgs e) +11905492
System.Web.UI.Control.PreRenderRecursiveInternal() +162
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6875
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