Error using code coverage in VSTS

I own the Professional Edition and I am getting the following error while running a test with code coverage in VSTS:


Test method JDA.PRO.Framework.UnitTest.Service.PROServiceFactoryUnitTest.TestCreateServiceInstanceSingleton threw exception: System.MissingMethodException: Method not found: 'Void TypeMock.InternalMockManager.Clover()'..

Why does it try to use "Clover"?

Here is the unit test code.

[TestMethod]
public void TestCreateServiceInstanceSingleton()
{
MockManager.Init();

PROServiceImplementationInfo serviceInfo = new PROServiceImplementationInfo();
serviceInfo.AssemblyName = "JDA.PRO.Framework.UnitTest";
serviceInfo.ClassName = "JDA.PRO.Framework.UnitTest.Service.Helper.TestService";
serviceInfo.InterfaceName = "JDA.PRO.Framework.UnitTest.Service.Helper.TestSingletonServiceInterface";
serviceInfo.ServiceInitializationType = "SINGLETON";

Mock mockPROServiceConfigurationHelper =
MockManager.MockAll(typeof(PROServiceConfigurationHelper), Constructor.NotMocked);
mockPROServiceConfigurationHelper.AlwaysReturn("GetServiceConfiguration", serviceInfo);

object testService = PROServiceFactory.GetInstance().CreateServiceInstance(typeof(TestSingletonServiceInterface));

Assert.AreEqual(typeof(TestService), testService.GetType());

TestSingletonServiceInterface testServiceInterface = (TestSingletonServiceInterface)testService;
Assert.AreEqual<int>(0, testServiceInterface.InstanceCount);
testServiceInterface.ClassDetail++;
testServiceInterface.InstanceCount++;
testService = PROServiceFactory.GetInstance().CreateServiceInstance(typeof(TestSingletonServiceInterface));
testServiceInterface = (TestSingletonServiceInterface)testService;
Assert.AreEqual<int>(1, testServiceInterface.InstanceCount);
Assert.AreEqual<int>(1, testServiceInterface.ClassDetail);

MockManager.Verify();
GC.Collect();

}