What could be causing an XML Parsing Error: no element found?
<p>I recently migrated an ASP site from my dev machine to a live server.  All the pages except my FAQ page works just fine, but my FAQ brings up:</p>

<pre><code>XML Parsing Error: no element found
Location: http://geniusupdate.com/GSHelp/faq.aspx
Line Number 1, Column 1:
</code></pre>

<p>The only changes I have made were changing the connection string on my SQL page from local to the string specified by my hosting service.  Any tips on what I can do to find the root of this issue?</p>

<p>here is the source to my FAQ page:</p>

<pre><code>&lt;%@ Page Language="VB" MasterPageFile="~/theMaster.master" AutoEventWireup="false" CodeFile="faq.aspx.vb" Inherits="faq" Title="Untitled Page" %&gt;
&lt;%@ Import Namespace="sqlstuff" %&gt;
&lt;%@ Import Namespace="functions" %&gt;

&lt;asp:Content ContentPlaceHolderID="page_title" ID="theTitle" runat="server"&gt;
    FAQ&lt;/asp:Content&gt;
&lt;asp:Content ContentPlaceHolderID="column1_title" ID="col1Title" runat="server"&gt;
    &lt;%=faqPageTitle(Request.QueryString("cid"))%&gt;&lt;/asp:Content&gt;
&lt;asp:Content ContentPlaceHolderID="column1" ID="columnContent" runat="server"&gt;

     &lt;p&gt;Click on a question to expand it to see the answer!&lt;/p&gt;
     &lt;p&gt;&lt;%  If cID &gt;= 0 Then
                Dim theFaq As New List(Of faqContent), iterate As Integer = 0
                theFaq = sqlStuff.getFaqs(cID)
                For Each oFaq As faqContent In theFaq
                    Response.Output.WriteLine("&lt;h4 id={0} class={1}&gt;Q: {2}&lt;/h4&gt;", _
                                                 addQuotes("gsSwitch{0}-title", iterate), _
                                                 addQuotes("handCursor"), _
                                                 oFaq.Content.Question)
                    Response.Output.WriteLine("&lt;div id={0} class={1}&gt;&lt;string&gt;A: &lt;/strong&gt;{2}&lt;/div&gt;", _
                                                 addQuotes("gsSwitch{0}", iterate), _
                                                 addQuotes("gsSwitch"), _
                                                 oFaq.Content.Answer)

                    iterate += 1
                Next
            Else
                Response.Output.Write("Here you can find a lot of information about eTHOMAS and how to expedite your office tasks.{0}", ControlChars.NewLine)
            End If
    %&gt;&lt;/p&gt;
    &lt;script type="text/javascript"&gt;
        var gsContent = new switchcontent("gsSwitch", "div")
        var eID = '&lt;%= expandID %&gt;'
        gsContent.collapsePrevious(true) // TRUE: only 1; FALSE: any number
        gsContent.setPersist(false)
        if(eID &gt;= 0){
            gsContent.defaultExpanded(eID) // opens the searched FAQ
            document.getElementById('gsSwitch' + eID + '-title').scrollIntoView(true) // scrolls to selected FAQ
        }        
        gsContent.init()
    &lt;/script&gt;
&lt;/asp:Content&gt;
&lt;asp:Content ContentPlaceHolderID="subcolumn_right_title" ID="rSideColTitle" runat="server"&gt;&lt;/asp:Content&gt;
&lt;asp:Content ContentPlaceHolderID="subcolumn_right" ID="rSideColContent" runat="server"&gt;&lt;/asp:Content&gt;
&lt;asp:Content ContentPlaceHolderID="subcolumn_left_title" ID="lSideColTitle" runat="server"&gt;&lt;/asp:Content&gt;
&lt;asp:Content ContentPlaceHolderID="subcolumn_left" ID="lSideColContent" runat="server"&gt;&lt;/asp:Content&gt;
&lt;asp:Content ContentPlaceHolderID="sidecolumn_title" ID="sideColtitle" runat="server"&gt;
&lt;/asp:Content&gt;
&lt;asp:Content ContentPlaceHolderID="sidecolumn" ID="sideCol" runat="server"&gt;
    &lt;%  If cID &gt;= 0 Then
            Response.Write(constructFaqSideMenu(CInt(Request.QueryString("cid"))))
        Else
            Response.Write(constructFaqSideMenu())
        End If
    %&gt;
&lt;/asp:Content&gt;
</code></pre>

<p>I found this on another forum <a href="http://dev.communityserver.com/forums/t/472596.aspx" rel="nofollow">link</a>: </p>

<blockquote>
  <p>Well, it appears it's a bit of both. The message is generated by Firefox, but caused by the framework. For some reason, .NET generates a response type of "application/xml" when it creates an empty page. Firefox parses the file as XML and finding no root element, spits out the error message.</p>
</blockquote>

<p>IE does not render the page, period.  This is where the XML is coming from.</p>

<p>Here is the constructFaqSideMenu() function:</p>

<pre><code>Public Shared Function constructFaqSideMenu(ByVal oSelID As Integer) As String
    Dim oCatList As New List(Of faqCategory)
    Dim oRet As New StringBuilder
    Dim iterate As Integer = 1, extraTag As String = ""

    oCatList = sqlStuff.getFaqCats

    oRet.AppendFormattedLine("&lt;ul id={0}&gt;", addQuotes("submenu"))
    oRet.AppendFormattedLine("    &lt;li id={0}&gt;FAQ Categories&lt;/li&gt;", addQuotes("title"))
    For Each category As faqCategory In oCatList
        If iterate = oSelID Then
            extraTag = String.Format(" id={0}", addQuotes("active"))
        Else
            extraTag = ""
        End If
        oRet.AppendFormattedLine("    &lt;li{0}&gt;&lt;a href={1}&gt;{2}&lt;/a&gt;&lt;/li&gt;", extraTag, addQuotes("faq.aspx?cid={0}", iterate), StrConv(category.Title,         VbStrConv.ProperCase))
        iterate += 1
    Next
    oRet.AppendLine("&lt;/ul&gt;")

    Return oRet.ToString
End Function
</code></pre>

<p>And here is the source of the blank page IE returns:</p>

<pre><code>&lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"&gt;
&lt;HTML&gt;&lt;HEAD&gt;
&lt;META http-equiv=Content-Type content="text/html; charset=windows-1252"&gt;&lt;/HEAD&gt;
&lt;BODY&gt;&lt;/BODY&gt;&lt;/HTML&gt;
</code></pre>
