any body please tell me how to solve this problem
It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
<?xml version="1.0"?>
<!--
For more information on how to configure your ASP.NET application, please visit
http://go.microsoft.com/fwlink/?LinkId=169433
-->
<configuration>
<!--<configSections>
<section name="rewriter" requirePermission="false" type="Intelligencia.UrlRewriter.Configuration.RewriterConfigurationSectionHandler, Intelligencia.UrlRewriter"/>
</configSections>-->
<connectionStrings>
<!--<add name="DerewalaConnection" connectionString="Data Source=A6-PC;Initial Catalog=dere45;User ID=sa;Password=asn" providerName="System.Data.SqlClient"/>-->
<add name="DerewalaConnection" connectionString="server=108.178;database=de_;User ID=der;Password=dere1;Initial Catalog=der" providerName="System.Data.SqlClient"/>
</connectionStrings>
<system.web>
<customErrors mode="Off"></customErrors>
<httpModules>
<!--<add name="UrlRewriter" type="Intelligencia.UrlRewriter.RewriterHttpModule, Intelligencia.UrlRewriter"/>-->
</httpModules>
<compilation debug="true" targetFramework="4.0">
<assemblies>
<add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Drawing.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
</assemblies>
</compilation>
<pages clientIDMode="AutoID" enableEventValidation="false" validateRequest="false">
</pages>
<sessionState mode="InProc" cookieless="false" timeout="60">
</sessionState>
<authentication mode="Forms">
<forms loginUrl="~/Account/Login.aspx" timeout="2880"/>
</authentication>
<membership>
<providers>
<clear/>
<add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/"/>
</providers>
</membership>
<profile>
<providers>
<clear/>
<add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/"/>
</providers>
</profile>
<roleManager enabled="false">
<providers>
<clear/>
<add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/"/>
<add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/"/>
</providers>
</roleManager>
</system.web>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer>
<!--<rewriter>
<rewrite url="~/index" to="~/default.aspx"/>
<rewrite url="~/Product" to="~/product.aspx"/>
<rewrite url="~/Products/(.+)" to="~/products.aspx?type=$1"/>
</rewriter>-->
</configuration>