Bunch of errors in my web.config file: Could not find schema information for...

If I remove the System.Web tag how do I do authentication?  The authentication tag falls under the system.web tag

Now, I am getting an additional error. It is saying:

Error    1    C:\Documents and Settings\staciem\My Documents\Visual Studio 2005\Projects\MarketingSystem\Styles\Default.Master: ASP.NET runtime error: Only one <configSections> element allowed per config file and if present must be the first child of the root <configuration> element. (C:\Documents and Settings\staciem\My Documents\Visual Studio 2005\Projects\MarketingSystem\web.config line 7)    C:\Documents and Settings\staciem\My Documents\Visual Studio 2005\Projects\MarketingSystem\Styles\Default.Master    1    1    MarketingSystem

I looked on line 7 of the web.config file (attached below) and I don't see anything wrong.

<?xml version="1.0"?>

  <configuration>
    <configSections>
      <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
        <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
          <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
          <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
            <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="Everywhere" />
            <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication" />
            <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication" />
          </sectionGroup>
        </sectionGroup>
      </sectionGroup>
    </configSections>
    <connectionStrings>
      <add name="Marketing_ResumesConnectionString" connectionString="Data Source=AUSDEV2;Initial Catalog=Marketing_Resumes;Persist Security Info=True;User ID=xxx;Password=xxx"
        providerName="System.Data.SqlClient" />
    </connectionStrings>
    
    <system.web>
      <authentication mode="Windows" />

      <authorization>
        <deny users="?"/>
      </authorization>
      <pages>
        <controls>
          <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        </controls>
      </pages>
      <!-- 
          Set compilation debug="true" to insert debugging 
          symbols into the compiled page. Because this 
          affects performance, set this value to true only 
          during development. 
    -->
      <compilation debug="false">
        <assemblies>
          <add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        </assemblies>
      </compilation>

      <httpHandlers>
        <remove verb="*" path="*.asmx"/>
        <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/>
      </httpHandlers>

      <httpModules>
        <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
      </httpModules>
    </system.web>


    <system.webServer>
      <validation validateIntegratedModeConfiguration="false"/>
      <modules>
        <add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
      </modules>
      <handlers>
        <remove name="WebServiceHandlerFactory-Integrated" />
        <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode"
             type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode"
             type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        <add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      </handlers>
    </system.webServer>
  </configuration>

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Okay, so the second error went away when I closed VS and reopened it.

So I commented out the System.WebServer section and the errors disappeared.

Had to try different things but finally found something that worked.