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TypeLoadException using Moq on the internal interface in the signed assembly

I am using the latest version of Moq (4.2.1502.911) in Visual Studio 2013 to mock the backend contained in another project. Both projects are signed with the same key. After searching here and elsewhere on the Internet, I decided that I needed to add InternalsVisibleTo for the test build and "DynamicProxyGenAssembly2" using the Moq public key as follows:

[assembly: InternalsVisibleTo("UnitTestProject1, PublicKey=00240000048000009...
[assembly: InternalsVisibleTo("DynamicProxyGenAssembly2, PublicKey=002400000...

Now, when I run my test method, I still get the following error:

Test Name:  TestMethod1
Test FullName:  UnitTestProject1.Class1Test.TestMethod1
Test Source:    c:\Users\******\Documents\Visual Studio 2013\Projects\MoqTest\UnitTestProject1\UnitTest1.cs : line 13
Test Outcome:   Failed
Test Duration:  0:00:00,0693592

Result Message: 
Test method UnitTestProject1.Class1Test.TestMethod1 threw exception: 
System.TypeLoadException: Le type 'Castle.Proxies.IFooProxy' de l'assembly 'DynamicProxyGenAssembly2, Version=0.0.0.0, Culture=neutral, PublicKeyToken=a621a9e7e5c32e69' essaye d'implémenter une interface inaccessible.
Result StackTrace:  
à System.Reflection.Emit.TypeBuilder.TermCreateClass(RuntimeModule module, Int32 tk, ObjectHandleOnStack type)
   à System.Reflection.Emit.TypeBuilder.CreateTypeNoLock()
   à System.Reflection.Emit.TypeBuilder.CreateType()
   à Castle.DynamicProxy.Generators.Emitters.AbstractTypeEmitter.CreateType(TypeBuilder type)
   à Castle.DynamicProxy.Generators.Emitters.AbstractTypeEmitter.BuildType()
   à Castle.DynamicProxy.Generators.InterfaceProxyWithoutTargetGenerator.GenerateType(String typeName, Type proxyTargetType, Type[] interfaces, INamingScope namingScope)
   à Castle.DynamicProxy.Generators.InterfaceProxyWithTargetGenerator.<>c__DisplayClass1.<GenerateCode>b__0(String n, INamingScope s)
   à Castle.DynamicProxy.Generators.BaseProxyGenerator.ObtainProxyType(CacheKey cacheKey, Func`3 factory)
   à Castle.DynamicProxy.Generators.InterfaceProxyWithTargetGenerator.GenerateCode(Type proxyTargetType, Type[] interfaces, ProxyGenerationOptions options)
   à Castle.DynamicProxy.DefaultProxyBuilder.CreateInterfaceProxyTypeWithoutTarget(Type interfaceToProxy, Type[] additionalInterfacesToProxy, ProxyGenerationOptions options)
   à Castle.DynamicProxy.ProxyGenerator.CreateInterfaceProxyWithoutTarget(Type interfaceToProxy, Type[] additionalInterfacesToProxy, ProxyGenerationOptions options, IInterceptor[] interceptors)
   à Moq.Proxy.CastleProxyFactory.CreateProxy(Type mockType, ICallInterceptor interceptor, Type[] interfaces, Object[] arguments)
   à Moq.Mock`1.<InitializeInstance>b__2()
   à Moq.PexProtector.Invoke(Action action)
   à Moq.Mock`1.InitializeInstance()
   à Moq.Mock`1.OnGetObject()
   à Moq.Mock`1.get_Object()
   à UnitTestProject1.Class1Test.TestMethod1() dans c:\Users\******\Documents\Visual Studio 2013\Projects\MoqTest\UnitTestProject1\UnitTest1.cs:ligne 15

(English: System.TypeLoadException : Type 'Castle.Proxies.IFooProxy' from assembly 'DynamicProxyGenAssembly2, Version=0.0.0.0, Culture=neutral, PublicKeyToken=a621a9e7e5c32e69' is attempting to implement an inaccessible interface.)

Is there anything else to make this work? The following is a minimal compiled example: https://www.dropbox.com/s/c2slwq4do5ttp9p/MoqTest.zip?dl=0

+4
1

:

0024000004800000940000000602000000240000525341310004000001000100c547cac37abd99c8db225ef2f6c8a3602f3b3606cc9891605d02baa56104f4cfc0734aa39b93bf7852f7d9266654753cc297e7d2edfe0bac1cdcf9f717241550e0a7b191195b7667bb4f64bcb8e2121380fd1d9d46ad2d92d2d15605093924cceaf74c4861eff62abf69b9291ed0a340e113be11e6a7d3113e92484cf7045cc7

, sn.exe, , , , Moq, DynamicProxyGenAssembly2. Moq GitHub:

https://github.com/Moq/moq4/wiki/Quickstart

// This assembly is the default dynamic assembly generated Castle DynamicProxy, 
// used by Moq. Paste in a single line.   
[assembly:InternalsVisibleTo("DynamicProxyGenAssembly2,PublicKey=0024000004800000940000000602000000240000525341310004000001000100c547cac37abd99c8db225ef2f6c8a3602f3b3606cc9891605d02baa56104f4cfc0734aa39b93bf7852f7d9266654753cc297e7d2edfe0bac1cdcf9f717241550e0a7b191195b7667bb4f64bcb8e2121380fd1d9d46ad2d92d2d15605093924cceaf74c4861eff62abf69b9291ed0a340e113be11e6a7d3113e92484cf7045cc7")]
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