What steps will reproduce the problem? 1.Create a testme thod and decorate with [HostType("Moles")] 2.Create a mocked variable in the test method 3.Run the test method

What is the expected output? What do you see instead? Test should pass. Instead, a TypeInitializationException is thrown upon executing the line of code that creates a mocked variable. The exception message is "The type initializer for 'Moq.Extensions' threw an exception."

What version of the product are you using? On what operating system? .NET 4.0 version of Build 4.0.10827. Windows 7 x64.

Please provide any additional information below. We were previously on version 3.1 which seemed to work fine with Microsoft Moles. When we upgraded to 4.0, we started seeing the noted exception. We have reverted to version 3.1 for now because we have a fairly large investment in Moles.

I am also seeing this issue using .NET 4.0, MOQ 4.0.10827, Win 7 x64, Moles 0.94.51023.0. The exception detail is:

System.TypeInitializationException was unhandled by user code Message=The type initializer for 'MyCompany.UnitTests.Framework.UnitTestBase' threw an exception. Source=MyCompany.UnitTests.Framework TypeName=MyCompany.UnitTests.Framework.UnitTestBase StackTrace: at MyCompany.UnitTests.Framework.UnitTestBase.get_Container() at MyCompany.UnitTests.Client.Features.DocumentsViewModel.DocumentOverViewViewModelTestWithMoq.RegisterDependencies() in D:\Project\SuperDepartment\DocuMagic\Development\Mudders\MyCompany\UnitTests\Client\Features\DocumentModuleTests\DocumentOverViewViewModelTestWithMoq.cs:line 265 at MyCompany.UnitTests.Client.Features.DocumentsViewModel.DocumentOverViewViewModelTestWithMoq.ClassInitialize(TestContext context) in D:\Project\SuperDepartment\DocuMagic\Development\Mudders\MyCompany\UnitTests\Client\Features\DocumentModuleTests\DocumentOverViewViewModelTestWithMoq.cs:line 42 InnerException: System.TypeInitializationException Message=The type initializer for 'Moq.Extensions' threw an exception. Source=Moq TypeName=Moq.Extensions StackTrace: at Moq.Extensions.ThrowIfNotMockeable(Type typeToMock) at Moq.Mock1.CheckParameters() at Moq.Mock1..ctor(MockBehavior behavior, Object[] args) at Moq.Mock1..ctor(MockBehavior behavior) at Moq.Mock1..ctor() at MyCompany.UnitTests.Framework.FakeEntities.get_DocuMagicUserInfo() in D:\Project\SuperDepartment\DocuMagic\Development\Mudders\MyCompany\UnitTests\Framework\FakeEntities.cs:line 105 at MyCompany.UnitTests.Framework.UnitTestBase.RegisterDependencies() in D:\Project\SuperDepartment\DocuMagic\Development\Mudders\MyCompany\UnitTests\Framework\UnitTestBase.cs:line 44 at MyCompany.UnitTests.Framework.UnitTestBase.Initialize() in D:\Project\SuperDepartment\DocuMagic\Development\Mudders\MyCompany\UnitTests\Framework\UnitTestBase.cs:line 37 at MyCompany.UnitTests.Framework.UnitTestBase..cctor() in D:\Project\SuperDepartment\DocuMagic\Development\Mudders\MyCompany\UnitTests\Framework\UnitTestBase.cs:line 17 InnerException: System.Security.VerificationException Message=Operation could destabilize the runtime. Source=Moq StackTrace: at Moq.Extensions..cctor() InnerException: