MD failure to activate MFA

MFA activation fail log

ERROR [2012-08-13 13:54:52Z]: Error activating Mono for Android
System.ArgumentNullException: Value cannot be null.
Parameter name: path1
   at System.IO.Path.Combine(String path1, String path2)
   at Xamarin.AndroidTools.MonoDroidSdk.get_MandroidExe()
   at MonoDevelop.MonoDroid.MonoDroidFramework.Activate(UserData data)
ERROR [2012-08-13 13:54:54Z]: Error activating Mono for Android
System.ArgumentNullException: Value cannot be null.
Parameter name: path1
   at System.IO.Path.Combine(String path1, String path2)
   at Xamarin.AndroidTools.MonoDroidSdk.get_MandroidExe()
   at MonoDevelop.MonoDroid.MonoDroidFramework.Activate(UserData data)
ERROR [2012-08-13 13:56:39Z]: Error activating Mono for Android
System.ArgumentNullException: Value cannot be null.
Parameter name: path1
   at System.IO.Path.Combine(String path1, String path2)
   at Xamarin.AndroidTools.MonoDroidSdk.get_MandroidExe()
   at MonoDevelop.MonoDroid.MonoDroidFramework.Activate(UserData data)
ERROR [2012-08-13 13:56:40Z]: Error activating Mono for Android
System.ArgumentNullException: Value cannot be null.
Parameter name: path1
   at System.IO.Path.Combine(String path1, String path2)
   at Xamarin.AndroidTools.MonoDroidSdk.get_MandroidExe()
   at MonoDevelop.MonoDroid.MonoDroidFramework.Activate(UserData data)
WARNING [2012-08-13 13:56:46Z]: Gtk-Warning: Failed to set text from markup due to error parsing markup: Error on line 1: Entity did not end with a semicolon; most likely you used an ampersand character without intending to start an entity - escape ampersand as &
Stack trace: 
   at Gtk.Label.set_Markup(String value)
   at MonoDevelop.Ide.WelcomePage.WelcomePageLinkButton.UpdateLabel(Boolean underlined)
   at MonoDevelop.Ide.WelcomePage.WelcomePageLinkButton..ctor(XElement el, IconSize iconSize)
   at MonoDevelop.Ide.WelcomePage.WelcomePageLinkButton..ctor(XElement el)
   at MonoDevelop.Ide.WelcomePage.WelcomePageNewsFeed.LoadNews()
   at MonoDevelop.Ide.WelcomePage.WelcomePageNewsFeed..ctor(XElement el)
   at MonoDevelop.Ide.WelcomePage.WelcomePageWidget.BuildContent()
   at MonoDevelop.Ide.WelcomePage.WelcomePageWidget..ctor()
   at MonoDevelop.Ide.WelcomePage.WelcomePageView..ctor()
   at MonoDevelop.Ide.WelcomePage.ShowWelcomePageHandler.Show()
   at MonoDevelop.Ide.WelcomePage.WelcomePageStartUp.<Run>b__1(Object , EventArgs )
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at MonoDevelop.Ide.RootWorkspace.NotifyItemRemovedGui(WorkspaceItem item)
   at MonoDevelop.Ide.RootWorkspace.NotifyItemRemoved(WorkspaceItem item)
   at MonoDevelop.Ide.RootWorkspaceItemCollection.RemoveItem(Int32 index)
   at System.Collections.ObjectModel.Collection`1.Remove(T item)
   at MonoDevelop.Ide.RootWorkspace.Close(Boolean saveWorkspacePreferencies, Boolean closeProjectFiles)
   at MonoDevelop.Ide.Gui.DefaultWorkbench.Close()
   at MonoDevelop.Ide.Gui.DefaultWorkbench.OnClosing(Object o, DeleteEventArgs e)
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   at System.Delegate.DynamicInvokeImpl(Object[] args)
   at GLib.Signal.ClosureInvokedCB(Object o, ClosureInvokedArgs args)
   at GLib.SignalClosure.Invoke(ClosureInvokedArgs args)
   at GLib.SignalClosure.MarshalCallback(IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at MonoDevelop.Ide.IdeApp.Run()
   at MonoDevelop.Ide.IdeStartup.Run(MonoDevelopOptions options)
   at MonoDevelop.Ide.IdeStartup.Main(String[] args)
   at MonoDevelop.Startup.MonoDevelopMain.Main(String[] args)