Скачал Нитру : http://nemerle.org/nitra-builds/nitra-binaries.zip
Запустил Nitra.Visualizer.exe
Получил окно, что программа не подписана, ну еще ладно пока альфа.
Создал новое решение.
Нажал Add test suite и программа упала.

     Nitra.Visualizer.exe!Nitra.Visualizer.TestSuitDialog.TestSuitDialog(bool create, Nitra.ViewModels.TestSuitVm baseTestSuit) Line 85    C#
     Nitra.Visualizer.exe!Nitra.Visualizer.MainWindow.EditTestSuit(bool create) Line 916    C#
     Nitra.Visualizer.exe!Nitra.Visualizer.MainWindow.OnAddTestSuit(object sender, System.Windows.Input.ExecutedRoutedEventArgs e) Line 909    C#
     PresentationCore.dll!System.Windows.Input.CommandBinding.OnExecuted(object sender, System.Windows.Input.ExecutedRoutedEventArgs e)    Unknown
     PresentationCore.dll!System.Windows.Input.CommandManager.ExecuteCommandBinding(object sender, System.Windows.Input.ExecutedRoutedEventArgs e, System.Windows.Input.CommandBinding commandBinding)    Unknown
     PresentationCore.dll!System.Windows.Input.CommandManager.FindCommandBinding(System.Windows.Input.CommandBindingCollection commandBindings, object sender, System.Windows.RoutedEventArgs e, System.Windows.Input.ICommand command, bool execute)    Unknown
     PresentationCore.dll!System.Windows.Input.CommandManager.FindCommandBinding(object sender, System.Windows.RoutedEventArgs e, System.Windows.Input.ICommand command, bool execute)    Unknown
     PresentationCore.dll!System.Windows.Input.CommandManager.OnExecuted(object sender, System.Windows.Input.ExecutedRoutedEventArgs e)    Unknown
     PresentationCore.dll!System.Windows.UIElement.OnExecutedThunk(object sender, System.Windows.Input.ExecutedRoutedEventArgs e)    Unknown
     PresentationCore.dll!System.Windows.Input.ExecutedRoutedEventArgs.InvokeEventHandler(System.Delegate genericHandler, object target)    Unknown
     PresentationCore.dll!System.Windows.RoutedEventArgs.InvokeHandler(System.Delegate handler, object target)    Unknown
     PresentationCore.dll!System.Windows.RoutedEventHandlerInfo.InvokeHandler(object target, System.Windows.RoutedEventArgs routedEventArgs)    Unknown
     PresentationCore.dll!System.Windows.EventRoute.InvokeHandlersImpl(object source, System.Windows.RoutedEventArgs args, bool reRaised)    Unknown
     PresentationCore.dll!System.Windows.UIElement.RaiseEventImpl(System.Windows.DependencyObject sender, System.Windows.RoutedEventArgs args)    Unknown
     PresentationCore.dll!System.Windows.UIElement.RaiseEvent(System.Windows.RoutedEventArgs args, bool trusted)    Unknown
     PresentationCore.dll!System.Windows.Input.RoutedCommand.ExecuteImpl(object parameter, System.Windows.IInputElement target, bool userInitiated)    Unknown
     PresentationCore.dll!System.Windows.Input.RoutedCommand.ExecuteCore(object parameter, System.Windows.IInputElement target, bool userInitiated)    Unknown
     PresentationFramework.dll!MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(System.Windows.Input.ICommandSource commandSource, bool userInitiated)    Unknown
     PresentationFramework.dll!System.Windows.Controls.MenuItem.InvokeClickAfterRender(object arg)    Unknown
     WindowsBase.dll!System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate callback, object args, int numArgs)    Unknown
     WindowsBase.dll!MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(object source, System.Delegate method, object args, int numArgs, System.Delegate catchHandler)    Unknown
     WindowsBase.dll!System.Windows.Threading.DispatcherOperation.InvokeImpl()    Unknown
     WindowsBase.dll!System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(object state)    Unknown
     mscorlib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state, bool preserveSyncCtx) Line 581    C#
     mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state, bool preserveSyncCtx) Line 531    C#
     mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Line 520    C#
     WindowsBase.dll!System.Windows.Threading.DispatcherOperation.Invoke()    Unknown
     WindowsBase.dll!System.Windows.Threading.Dispatcher.ProcessQueue()    Unknown
     WindowsBase.dll!System.Windows.Threading.Dispatcher.WndProcHook(System.IntPtr hwnd, int msg, System.IntPtr wParam, System.IntPtr lParam, ref bool handled)    Unknown
     WindowsBase.dll!MS.Win32.HwndWrapper.WndProc(System.IntPtr hwnd, int msg, System.IntPtr wParam, System.IntPtr lParam, ref bool handled)    Unknown
     WindowsBase.dll!MS.Win32.HwndSubclass.DispatcherCallbackOperation(object o)    Unknown
     WindowsBase.dll!System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate callback, object args, int numArgs)    Unknown
     WindowsBase.dll!MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(object source, System.Delegate method, object args, int numArgs, System.Delegate catchHandler)    Unknown
     WindowsBase.dll!System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority priority, System.TimeSpan timeout, System.Delegate method, object args, int numArgs)    Unknown
     WindowsBase.dll!MS.Win32.HwndSubclass.SubclassWndProc(System.IntPtr hwnd, int msg, System.IntPtr wParam, System.IntPtr lParam)    Unknown
     [Native to Managed Transition]    
     [Managed to Native Transition]    
     WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame frame)    Unknown
     WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame frame)    Unknown
     WindowsBase.dll!System.Windows.Threading.Dispatcher.Run()    Unknown
     PresentationFramework.dll!System.Windows.Application.RunDispatcher(object ignore)    Unknown
     PresentationFramework.dll!System.Windows.Application.RunInternal(System.Windows.Window window)    Unknown
     PresentationFramework.dll!System.Windows.Application.Run(System.Windows.Window window)    Unknown
     Nitra.Visualizer.exe!Nitra.Visualizer.App.Main()    C#

Как после этого пользоваться когда простейшие вещи падают?