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The role encountered an error and stopped

I ran into a problem very similar to the problem we have in this question.

We have a standard MVC5 application that we have deployed to Windows Azure using webrole.

After deploying I see below error message in visual studio "Microsoft Azure Activity Window" 

Your role instances have recycled a number of times during an update or upgrade operation. This indicates that the new version of your service or the configuration settings you provided when configuring the service prevent the role instances from running. Verify your code does not throw unhandled exceptions and that your configuration settings are correct and then start another update or upgrade operation.

Below is the error message on the management console.

Restarting (Role has encountered an error and has stopped. Sites were deployed. [2014-10-22T04:46:57Z])

I found below error message in event viewer. (inside VM)

 The description for Event ID 1007 from source Windows Azure Runtime 2.4.0.0 cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

If the event originated on another computer, the display information had to be saved with the event.

The following information was included with the event: 

    2232
    WaIISHost
    Role entrypoint could not be created: System.TypeLoadException: Unable to load the role entry point due to the following exceptions:
    -- System.IO.FileLoadException: Could not load file or assembly 'System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
    File name: 'System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'

    WRN: Assembly binding logging is turned OFF.
    To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
    Note: There is some performance penalty associated with assembly bind failure logging.
    To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

     ---> System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.
       at System.Reflection.RuntimeModule.GetTypes(RuntimeModule module)
       at System.Reflection.RuntimeModule.GetTypes()
       at System.Reflection.Assembly.GetTypes()
       at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.GetRoleEntryPoint(Assembly entryPointAssembly)
       --- End of inner exception stack trace ---
       at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.GetRoleEntryPoint(Assembly entryPointAssembly)
       at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.CreateRoleEntryPoint(RoleType roleTypeEnum)
       at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.InitializeRoleInternal(RoleType roleTypeEnum)

    the message resource is present but the message is not found in the string/message table

I don't know why this is for version 4.0.0.0 My section of the web.config file looks like this.

 <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-5.1.0.0" newVersion="5.1.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Optimization" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="1.1.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.WindowsAzure.Storage" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.1.0" newVersion="4.0.1.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
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3 answers


I have a solution to this problem. I found the location of WaIISHost.exe and modified the existing WaIISHost.exe.config file to add the redirect instructions attached to it.



You can find this file under 'E: \ base \ x64'

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Your web.config controls w3wp.exe, but your column shows that you are crashing in WaIISHost.exe. You have several options:



  • Why are you referencing System.Web.Mvc in your DLL entry point (usually WebRole.cs)? If you can refactor this part of your code, you don't have to worry about loading this DLL and all its dependencies into the WaIISHost process.
  • Create an app.config with the same forwarding forwarding as in your web.config.
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I had this problem with version 5.1 and had to set MVC dll copytolocal = true. I believe this is related to the previous MVC security update. This is an excerpt from Microsoft requiring an MVC update.

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