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Problems building site after deleting bin / obj / ClientBin folders - "only content controls are allowed directly in a content page that contains content controls"

Posted on 2009-05-12
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Last Modified: 2013-11-26
Hi,

I've deleted all the bin, debug, and ClientBin folders in an ASP.NET / Silverlight project to prepare the project for entry into source control. now I get the error message when trying to build:

"only content controls are allowed directly in a content page that contains content controls" for several .aspx pages.

Clicking the errors in visual studio doesn't take me to anthing useful. The pages listed don't all include UserControls, but some may.

What could be the problem here?

What could be the problem here. Other than
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Question by:Cognize
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by:Cognize
ID: 24362670
This seems to be a red herring type error message - I really cant see a problem with any of the example pages
<%@ Page Title="" Language="C#" MasterPageFile="~/Master.master" AutoEventWireup="true" CodeFile="MobileApplicationAndDeviceManagement.aspx.cs" Inherits="Administration_MobileApplicationAndDeviceManagement" MaintainScrollPositionOnPostback="true" %>
 
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
 
<!-- Override column layout with mini style sheet -->
<link href="../Styles/SingleColLayout.css" rel="stylesheet" type="text/css" />
 
<style type="text/css">
 
h2
{
    margin-top: 10px;
}
 
.applicationModelAssociationTxtBx
{
    display: inline;
    float: left;
}
 
.leftApplicationModelAssociationTxtBx
{
    margin-right: 10px;
}
 
.hoverBtn
{
    cursor: pointer;
}
 
.bigButton
{
    width: 800px;
    height: 35px;
    margin-top: 10px;
    margin-bottom: 10px;
}
 
.fileUploader
{
    width: 800px;
    height: 20px;
    margin-bottom: 10px;
    margin-top: 10px;
}
 
.compatTxtBxHeader
{
    font-size: 0.85em;
    color: #006699;
}
 
.modelUploadManufDDL
{
    margin-bottom: 10px;
}
 
.littleBtn
{
    margin-bottom: 10px;
    margin-top: 10px;
    height: 30px;
}
 
.SuccessPnl
{
    border: 1px solid green;
    color: Green;
}
 
.ErrorPnl
{
    border: 1px solid red;
    color: Red;
}
 
.SuccessPnl, .ErrorPnl
{
    background-color: #FFFFCC;
    padding: 10px;
    margin-bottom: 10px;
}
 
.ErrorTextBox
{
    color: red;    
}
 
.SuccessTextBox
{
    color: green;    
}
 
.UnsetTextBox
{
    color: #333333;    
}
 
#bgDiv {
  position:absolute;
  top:0px;
  bottom:0px;
  left:0px;
  right:0px;
  overflow:hidden;
  padding:0;
  margin:0;
  height: 1350px;
  background-color:black; 
  filter: alpha(opacity=50);
  opacity: 0.5;
  z-index:500;
}
 
#progressPleaseWaitDiv
{
    border: 1px solid #999999;
    text-align: center;
    color: Green;
    position: absolute;
    left: 20px;
    top: 20px;
    font-size: 2em;
    z-index: 600;
    background-color: #ffffff;
    padding: 10px;
}
 
</style>
 
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    
    <div>
        <h2>Application Upload &amp; Device Association for <asp:Literal ID="m_prodTitleLit" runat="server"></asp:Literal> ( ID: <asp:Literal ID="m_prodIdLit" runat="server"></asp:Literal> )</h2>
        <br />
        <asp:Literal ID="m_prodLinkLit" runat="server"></asp:Literal><br />
        <br />
        <asp:Image ID="m_productThumbImg" runat="server" />
        
    </div>
    
            <hr />
            
            <div id="clearAllDataDiv">
            
                <h2>Clear Compatible Models Text Boxes</h2>
                
                <br />
                
                <div>
                    <asp:LinkButton CssClass="hoverBtn" ID="m_clearAllDataBtn" runat="server" 
                        Text="Clear Compatible Models Text Boxes" onclick="m_clearAllDataBtn_Click" />
                </div>
                
                <br />
            </div>
            
        
            <hr />
            
            <div id="applicationModelAssociationDiv">
            
                <h2>Application Device Association</h2>
                
                <div>
                    <asp:FileUpload  CssClass="fileUploader" ID="m_applicationFileUpload" runat="server" />
                </div>
                
                <div>
                    <div class="applicationModelAssociationTxtBx leftApplicationModelAssociationTxtBx">
                        
                        <asp:Label CssClass="compatTxtBxHeader" ID="m_potentialCompatibleModelsLbl" runat="server" Text="Potential Compatible Models"></asp:Label>
                        <br />
                        <asp:TextBox CssClass="UnsetTextBox" ID="m_potentialCompatibleModelsTxtBx" Width="390" Height="200" 
                            runat="server" BackColor="#FFFF99" Font-Names="Courier New" 
                            TextMode="MultiLine"></asp:TextBox>
                    </div>
                    <div class="applicationModelAssociationTxtBx">
                        
                        <asp:Label CssClass="compatTxtBxHeader" ID="m_successfulCompatibleModelsLbl" runat="server" Text="Successful Compatible Models"></asp:Label>
                        <br />
                        <asp:TextBox CssClass="UnsetTextBox" ID="m_successfulCompatibleModelTxtBx" Width="390" Height="200" 
                            runat="server" BackColor="#FFFF99" TextMode="MultiLine"></asp:TextBox>
                    </div>
                    
                    <div class="ClearingLeftDiv"></div>
                    
                    
                </div>
                
 
                <div>
                    <asp:Button CssClass="hoverBtn bigButton" ID="m_associateApplicationsModelsBtn" 
                        runat="server" Text="Upload Application and Associate Devices" 
                        onclick="m_associateApplicationsModelsBtn_Click" />
                        
                    <asp:Panel CssClass="SuccessPnl" ID="m_applicationUploadAssociationStatusPnl" runat="server" Visible="false">
                    
                        
                    
                    </asp:Panel>
                    
                </div>
            </div>
            
            <asp:UpdateProgress  runat="server" id="m_pageUpdateProgress">
            <ProgressTemplate>
                    <div id="progressPleaseWaitDiv">
                            <span>Loading...</span>
                    </div>
                <div id="bgDiv"></div> 
            </ProgressTemplate>
        </asp:UpdateProgress>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            
 
            <div id="modelUploadDiv">
                
                <div class="applicationModelAssociationTxtBx">
                
                    
                    <MyControl:MobileMakesAndModelsEditor ID="m_uc_mobileMakesAndModelsControl" DisplayMakesAndModelsLists="false" runat="server" />
 
                </div>
                
                <div class="ClearingLeftDiv"></div>
                
            </div>
            
            <hr />
            
 
            
            
        </ContentTemplate>
    </asp:UpdatePanel>
 
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="ContentPlaceHolder2" Runat="Server">
</asp:Content>
<asp:Content ID="Content4" ContentPlaceHolderID="ContentPlaceHolder3" Runat="Server">
</asp:Content>

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Cognize earned 0 total points
ID: 24362712
Ok, it was a red herring.

I commented out everything in all the pages reporting the error as listed above, and then got an  error saying that the application could not find something in the System.Web.Silverlight name space. I added a reference back to the System.Web.Silverlight dll into the web project, and presto!


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