How to define alias for PerRequestLifetimeManager, getting "could not be resolved" error

Question

I'm trying to define an alias for PerRequestLifetimeManager, and use it in the container configuration section, but I keep getting this error: "The type name or alias PerRequestLifetimeManager could not be resolved. Please check your configuration file and verify this type name." What am I missing? The other 2 aliases work fine, but they are not in the same dll...

      <!-- not working -->
      <typeAlias alias="request" type="Microsoft.Practices.Unity.PerRequestLifetimeManager ,          Microsoft.Practices.Unity.Mvc"/>

      <!-- working -->
      <typeAlias alias="singleton" type="Microsoft.Practices.Unity.ContainerControlledLifetimeManager,                      Microsoft.Practices.Unity"/>
      <typeAlias alias="external" type="Microsoft.Practices.Unity.ExternallyControlledLifetimeManager,                      Microsoft.Practices.Unity"/>

UPDATE

Below is my unity config section. I get a "The type name or alias request could not be resolved." error.

 <unity>
    <typeAliases>
      <!-- Lifetime manager types -->
      <typeAlias alias="singleton" type="Microsoft.Practices.Unity.ContainerControlledLifetimeManager,                      Microsoft.Practices.Unity"/>
      <typeAlias alias="external" type="Microsoft.Practices.Unity.ExternallyControlledLifetimeManager,                      Microsoft.Practices.Unity"/>
      <typeAlias alias="request" type="Microsoft.Practices.Unity.PerRequestLifetimeManager ,          Microsoft.Practices.Unity.Mvc"/>
   </typeAliases>
    <containers>
      <container name="main">
        <types>
          <type type="IProvider" mapTo="ConcreteProvider">
            <lifetime type="request"/>
          </type>
        </types>
    </container>
     </containers>
</unity>

Answer 1

Just put some very simple sample together and the below setup works for me.

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="unity" type="Microsoft.Practices.Unity.Configuration
   .UnityConfigurationSection, Microsoft.Practices.Unity.Configuration"/>
  </configSections>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
  </startup>
  <unity xmlns="http://schemas.microsoft.com/practices/2010/unity">
    <alias alias="ILogger" type="ConsoleApplication2.ILogger, ConsoleApplication2" />
    <alias alias="request" type="Microsoft.Practices.Unity.PerRequestLifetimeManager,
     Microsoft.Practices.Unity.Mvc" />
    <container name="MyContainer">
      <register type="ILogger" mapTo="ConsoleApplication2.FileLogger,
     ConsoleApplication2" />
    </container>
  </unity>
</configuration>

UPDATE 6/8/2014 for the comments below.

A. Create a new project i. C# Console App .NET v 4.5 B. Install-Package Unity C. Install-Package Unity.Mvc

Package.config

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="CommonServiceLocator" version="1.2" targetFramework="net45" />
  <package id="Microsoft.AspNet.Mvc" version="4.0.30506.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.Razor" version="2.0.30506.0" targetFramework="net45" />
  <package id="Microsoft.AspNet.WebPages" version="2.0.30506.0" targetFramework="net45" />
  <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
  <package id="Unity" version="3.5.1404.0" targetFramework="net45" />
  <package id="Unity.Mvc" version="3.5.1404.0" targetFramework="net45" />
  <package id="WebActivatorEx" version="2.0.5" targetFramework="net45" />
</packages>

Use the configuration file.

using Microsoft.Practices.Unity.Configuration;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            IUnityContainer container = new UnityContainer();
            container.LoadConfiguration("MyContainer");
            var logger = container.Resolve<ILogger>();
            Console.Read();
        }
    }

    public interface ILogger
    {
    }

    public class FileLogger : ILogger
    {
    }
}