Unable to Process

An HtmlSelect cannot have multiple items selected when Multiple is false.

123 at System.Web.UI.HtmlControls.HtmlSelect.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.WebControls.WebControl.RenderContents(HtmlTextWriter writer)
at System.Web.UI.WebControls.WebControl.Render(HtmlTextWriter writer)
at ASP.portal_skins_singlepointresources_requestdemo_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\root\6a350503\51486e40\App_Web_ydtdtfuw.2.cs:line 0
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at ASP.portal_skins_singlepointhome_singlepointhome_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in d:\SinglePointSites\Rus2\Portal\Skins\SinglePointHome\SinglePointHome.ascx:line 15
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.WebControls.WebControl.RenderContents(HtmlTextWriter writer)
at System.Web.UI.WebControls.WebControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.WebControls.WebControl.RenderContents(HtmlTextWriter writer)
at System.Web.UI.WebControls.WebControl.Render(HtmlTextWriter writer)
at ASP.default_aspx.__Renderform1(HtmlTextWriter __w, Control parameterContainer) in d:\SinglePointSites\Rus2\Default.aspx:line 16
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output)
at System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Page.Render(HtmlTextWriter writer)
at Orm.Web.UI.BasePage.Render(HtmlTextWriter writer) in D:\ssmirnov\dc2\Syncronology\SinglePointRu2\Project\Orm\Web\UI\BasePage.cs:line 95
at Orm.Web.UI.AjaxPage.Render(HtmlTextWriter writer) in D:\ssmirnov\dc2\Syncronology\SinglePointRu2\Project\Orm\Web\UI\AjaxPage.cs:line 66
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)