[CLOSED] MVC Web.conf file error

[craig2005]

I get this error after installing:

Cannot add duplicate collection entry of type 'add' with unique key attribute 'name' set to 'DirectRequestHandler'

The bolded lines below seem to conflict with each other.

Should MVC be setup differently in the config file?

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <section name="extnet" type="Ext.Net.GlobalConfig" requirePermission="false" />
  </configSections>
  <extnet scriptMode="Release" theme="Gray" />
  <appSettings>
    <add key="webpages:Version" value="1.0.0.0" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
  </appSettings>
  <system.web>
    <compilation debug="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web.Helpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
      </assemblies>
    </compilation>
    <authentication mode="None" />
    <pages>
      <namespaces>
        <add namespace="System.Web.Helpers" />
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Routing" />
        <add namespace="System.Web.WebPages" />
      </namespaces>
      <controls>
        <add assembly="Ext.Net" namespace="Ext.Net" tagPrefix="ext" />
      </controls>
    </pages>
    <httpHandlers>
      <add path="*/ext.axd" verb="*" type="Ext.Net.ResourceHandler" validate="false" />
    </httpHandlers>
    <httpModules>
      <add name="DirectRequestModule" type="Ext.Net.DirectRequestModule, Ext.Net" />
    </httpModules>
  </system.web>
  <system.webServer>
    <validation validateIntegratedModeConfiguration="false"/>
    <modules>
      <add name="DirectRequestModule" preCondition="managedHandler" type="Ext.Net.DirectRequestModule, Ext.Net" />
    </modules>
    <handlers>
      <add name="DirectRequestHandler" verb="*" path="*/ext.axd" preCondition="integratedMode" type="Ext.Net.ResourceHandler" />
    </handlers>
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="3.0.0.0" />
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" />
        <bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.5.5" />
        <assemblyIdentity name="Ext.Net.Utilities" publicKeyToken="2c34ac34702a3c23" />
        <bindingRedirect oldVersion="0.0.0.0-2.0.0" newVersion="2.0.1" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  </configuration>

[Daniil]

Hi,

I am unable to reproduce the error with your Web.config.

Even if I set up:

<system.webServer>
  <validation validateIntegratedModeConfiguration="false"/>
  <modules>
      <add name="DirectRequestModule" preCondition="managedHandler" type="Ext.Net.DirectRequestModule, Ext.Net" />
  </modules>
  <handlers>
      <add name="DirectRequestHandler" verb="*" path="*/ext.axd" preCondition="integratedMode" type="Ext.Net.ResourceHandler" />
      <add name="DirectRequestHandler" verb="*" path="*/ext.axd" preCondition="integratedMode" type="Ext.Net.ResourceHandler" />
  </handlers>
</system.webServer>

there is no error.

I am curious can this handler be somehow added programmatically anywhere in your code?

If the problem persists, please send a test project to daniil at ext dot net.

[craig2005]

It's an issue with IIS express and using virtual directories. When I use the built in VS web server, the problem goes away. However, I have iisexpress setup with a virtual directory and it seems to be merging files together somewhere.

Anyway, if anyone else has this problem, here's the solution.

 <system.webServer>
    <validation validateIntegratedModeConfiguration="false"/>
    <modules>
      <remove name="DirectRequestModule" />
      <add
				name="DirectRequestModule"
				preCondition="managedHandler"
				type="Ext.Net.DirectRequestModule, Ext.Net"
				/>
    </modules>
    <handlers>
      <remove name="DirectRequestHandler" />
        <add
				name="DirectRequestHandler"
				verb="*"
				path="*/ext.axd"
				preCondition="integratedMode"
				type="Ext.Net.ResourceHandler"
				/> 
    </handlers>
  </system.webServer>

[Daniil]

Thanks for sharing the solution! Good to know.

[equiman]

Thanks! Save my day!