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web.config file error

I am getting "Section must only appear once per config file" error... I need an extra set of eyes for this.  I have no idea what is appearing twice...

Can someone tell me?   Thanks..

Here is the web.config.

<?xml version="1.0"?>
<!--
    Note: As an alternative to hand editing this file you can use the
    web admin tool to configure settings for your application. Use
    the Website->Asp.Net Configuration option in Visual Studio.
    A full list of settings and comments can be found in
    machine.config.comments usually located in
    \Windows\Microsoft.Net\Framework\v2.x\Config
-->
<configuration>
  <appSettings>
    <add key="ChartImageHandler" value="storage=file;timeout=20;dir=c:\TempImageFiles\;" />
  </appSettings>
  <httpHandlers>
    <add path="ChartImg.axd" verb="GET,HEAD" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false" />
  </httpHandlers>
  <handlers>
    <add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD" path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
  </handlers>
      <system.web>
            <!--
            Set compilation debug="true" to insert debugging
            symbols into the compiled page. Because this
            affects performance, set this value to true only
            during development.

            Visual Basic options:
            Set strict="true" to disallow all data type conversions
            where data loss can occur.
            Set explicit="true" to force declaration of all variables.
        -->
            <compilation debug="true" strict="false" explicit="true">
                  <assemblies>
                        <add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
                        <add assembly="System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
                        <add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/></assemblies></compilation>
            <pages>
                  <namespaces>
                        <clear/>
                        <add namespace="System"/>
                        <add namespace="System.Collections"/>
                        <add namespace="System.Collections.Generic"/>
                        <add namespace="System.Collections.Specialized"/>
                        <add namespace="System.Configuration"/>
                        <add namespace="System.Text"/>
                        <add namespace="System.Text.RegularExpressions"/>
                        <add namespace="System.Web"/>
                        <add namespace="System.Web.Caching"/>
                        <add namespace="System.Web.SessionState"/>
                        <add namespace="System.Web.Security"/>
                        <add namespace="System.Web.Profile"/>
                        <add namespace="System.Web.UI"/>
                        <add namespace="System.Web.UI.WebControls"/>
                        <add namespace="System.Web.UI.WebControls.WebParts"/>
                        <add namespace="System.Web.UI.HtmlControls"/>
                  </namespaces>
            </pages>
            <!--
            The <authentication> section enables configuration
            of the security authentication mode used by
            ASP.NET to identify an incoming user.
        -->
            <authentication mode="Windows"/>
            <!--
            The <customErrors> section enables configuration
            of what to do if/when an unhandled error occurs
            during the execution of a request. Specifically,
            it enables developers to configure html error pages
            to be displayed in place of a error stack trace.

        <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
            <error statusCode="403" redirect="NoAccess.htm" />
            <error statusCode="404" redirect="FileNotFound.htm" />
        </customErrors>
        -->
      </system.web>
</configuration>
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ASKER

Thanks for the help from all of you....

Here is the new web.config... but the error still shows...

<?xml version="1.0"?>
<!--
    Note: As an alternative to hand editing this file you can use the
    web admin tool to configure settings for your application. Use
    the Website->Asp.Net Configuration option in Visual Studio.
    A full list of settings and comments can be found in
    machine.config.comments usually located in
    \Windows\Microsoft.Net\Framework\v2.x\Config
-->
<configuration>
  <appSettings>
    <add key="ChartImageHandler" value="storage=file;timeout=20;dir=c:\TempImageFiles\;" />
  </appSettings>

      <system.web>
    <httpHandlers>
      <add path="ChartImg.axd" verb="GET,HEAD" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false" />
    </httpHandlers>
            <!--
            Set compilation debug="true" to insert debugging
            symbols into the compiled page. Because this
            affects performance, set this value to true only
            during development.

            Visual Basic options:
            Set strict="true" to disallow all data type conversions
            where data loss can occur.
            Set explicit="true" to force declaration of all variables.
        -->
            <compilation debug="true" strict="false" explicit="true">
                  <assemblies>
                        <add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
                        <add assembly="System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
                        <add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/></assemblies></compilation>
            <pages>
   <namespaces>
    <clear />
    <add namespace="System" />
    <add namespace="System.Collections" />
    <add namespace="System.Collections.Generic" />
    <add namespace="System.Collections.Specialized" />
    <add namespace="System.Configuration" />
    <add namespace="System.Text" />
    <add namespace="System.Text.RegularExpressions" />
    <add namespace="System.Web" />
    <add namespace="System.Web.Caching" />
    <add namespace="System.Web.SessionState" />
    <add namespace="System.Web.Security" />
    <add namespace="System.Web.Profile" />
    <add namespace="System.Web.UI" />
    <add namespace="System.Web.UI.WebControls" />
    <add namespace="System.Web.UI.WebControls.WebParts" />
    <add namespace="System.Web.UI.HtmlControls" />
   </namespaces>
   <controls>
    <add tagPrefix="asp" namespace="System.Web.UI.DataVisualization.Charting"
     assembly="System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
   </controls>
  </pages>
            <!--
            The <authentication> section enables configuration
            of the security authentication mode used by
            ASP.NET to identify an incoming user.
        -->
            <authentication mode="Windows"/>
            <!--
            The <customErrors> section enables configuration
            of what to do if/when an unhandled error occurs
            during the execution of a request. Specifically,
            it enables developers to configure html error pages
            to be displayed in place of a error stack trace.

        <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
            <error statusCode="403" redirect="NoAccess.htm" />
            <error statusCode="404" redirect="FileNotFound.htm" />
        </customErrors>
        -->
      </system.web>
  <system.webServer>
    <handlers>
      <add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD" path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </handlers>
  </system.webServer>
</configuration>
Avatar of strong-daniel
strong-daniel
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ASKER

I think there is something wrong with my web.config file...

I tried taking out several things and I still get the error...


Avatar of tiagosalgado
tiagosalgado
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Why do you need <handlers> section? Don't you need only <httphandlers> ??
Avatar of strong-daniel
strong-daniel
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ASKER

I am going off what the Microsoft guys said in their little bit of documentation about MSCharts....

I got this to work.  For some reason Visual Studio 2008 was (I think) corrupting the web.config file when I would drag and drop a MSChart onto my webpage.  

SO what I did was download the samples for MSCharts, I copy the sample web.config into my project, and everything started working.

I am still going to give out the points because you guys helped place the entries into the right area in the web.config file.

Avatar of strong-daniel
strong-daniel
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ASKER

Thanks for all the help.