Getting a 404 error after upgrading to ASP.NET 4.5

asp.netconfigurationiis-7.5

I recently upgraded my web app to .NET 4.5. After pushing the code to our testing environment, I get a "404 – File or directory not found." error. The code runs fine from my VS2013 desktop. The web server is running IIS 7.5 on W2K08 R2. I can view .asp or .htm page on the site, but get this error when try to view the simplest of .aspx pages. I'm suspect it's a configuration issue with my web.config.

Best Answer

Here is the web.config. http://go.microsoft.com/fwlink/?LinkId=235367.

The following attributes can be set on the <httpRuntime> tag.
  <system.Web>
    <httpRuntime targetFramework="4.5.2" />
  </system.Web>
  -->
  <system.web>
    <httpRuntime requestValidationMode="4.0" enableHeaderChecking="false" encoderType="System.Web.Security.AntiXss.AntiXssEncoder,System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
    <httpCookies httpOnlyCookies="true"/>
    <compilation debug="true" strict="false" explicit="true">
      <assemblies>
        <add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
        <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>
<trace enabled="false" pageOutput="false"/>
<pages theme="Apps" enableEventValidation="true" validateRequest="true" controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID">
  <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.Linq"/>
    <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" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
    <add tagPrefix="Ipls" assembly="cvx.Ipls.Web" namespace="cvx.Ipls.Web.UI.Controls"/>
    <add tagPrefix="telerik" namespace="Telerik.Web.UI" assembly="Telerik.Web.UI"/>
    <add tagPrefix="ccc" namespace="CSC.Web.Common.Controls" assembly="CSC.Web.Common.Controls35"/>
  </controls>
</pages>
<sessionState mode="InProc" timeout="60"/>
<httpHandlers>
  <add path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" validate="false"/>
  <add path="*_AppService.axd" verb="*" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
  <add path="ScriptResource.axd" verb="GET,HEAD"  type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" /> 
</httpHandlers>
<httpModules>
  <add name="ErrorModule" type="CSC.Web.Common.Errors.ErrorModule"/>
  <add name="securityModule" type="CSC.Web.Common.Security.securityModule"/>
  <add name="RadCompression" type="Telerik.Web.UI.RadCompression"/>
</httpModules>
<identity impersonate="false"/>
  </system.web>
     <!-- 
    The system.webServer section is required for running ASP.NET AJAX under Internet
    Information Services 7.0.  It is not necessary for previous version of IIS.
    -->
  <system.webServer>
    <validation validateIntegratedModeConfiguration="false"/>
   <modules>
  <add name="ErrorModule" type="CSC.Web.Common.Errors.ErrorModule"/>
  <add name="securityModule" type="CSC.Web.Common.Security.securityModule"/>
  <add name="RadCompression" type="Telerik.Web.UI.RadCompression"/>
</modules>
<handlers>
  <add name="Telerik.Web.UI.WebResource.axd_*" path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" preCondition="integratedMode"/>
  <add name="ScriptResource.axd_GET,HEAD" path="ScriptResource.axd" verb="GET,HEAD" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" preCondition="integratedMode"/>
  <add name="*_AppService.axd_*" path="*_AppService.axd" verb="*" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" preCondition="integratedMode"/>
  <add name="*.asmx_*" path="*.asmx" verb="*" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" preCondition="integratedMode"/>
</handlers>
<httpErrors errorMode="DetailedLocalOnly"/>
<defaultDocument>
  <files>
    <add value="Main.aspx"/>
  </files>
</defaultDocument>
 </system.webServer>
 <runtime>
 <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
  <!--<dependentAssembly>
    <assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35"/>
    <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0"/>
  </dependentAssembly>-->
 </assemblyBinding>
</runtime>
<location path="Telerik.Web.UI.WebResource.axd">
  <system.web>
    <authorization>
        <allow users="*"/>
    </authorization>
  </system.web>
</location>
<system.serviceModel>
<bindings>
  <basicHttpBinding>
    <binding name="BasicHttpBinding_ITwoWayAsync">
      <security mode="TransportCredentialOnly">
        <transport clientCredentialType="Windows"/>
      </security>
    </binding>
  </basicHttpBinding>
</bindings>
<client>
  <endpoint address="http://servername.com/InformationService/MasterDataService.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_ITwoWayAsync" contract="MasterData.MasterDataService" name="BasicHttpBinding_ITwoWayAsync"/>
</client>
</system.serviceModel>
</configuration>
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