Comment 8 for bug 891029

Still happening in Ubuntu 13.10.

Testing with mono 3.2.5, we get (at last!) a better error message:

Cannot add Control to TabControl. Only TabPages can be directly added to TabControls.
System.Windows.Forms
  at System.Windows.Forms.TabControl+ControlCollection.Add (System.Windows.Forms.Control value) [0x00000] in <filename unknown>:0
  at System.Windows.Forms.Control.set_Parent (System.Windows.Forms.Control value) [0x00000] in <filename unknown>:0
  at System.Windows.Forms.Control..ctor (System.Windows.Forms.Control parent, System.String text) [0x00000] in <filename unknown>:0
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.Control:.ctor (System.Windows.Forms.Control,string)
  at System.Windows.Forms.NativeWindow.WndProc (IntPtr hWnd, Msg msg, IntPtr wParam, IntPtr lParam) [0x00000] in <filename unknown>:0
  at System.Windows.Forms.XplatUIX11.DispatchMessage (System.Windows.Forms.MSG& msg) [0x00000] in <filename unknown>:0
  at System.Windows.Forms.XplatUI.DispatchMessage (System.Windows.Forms.MSG& msg) [0x00000] in <filename unknown>:0
  at System.Windows.Forms.Application.RunLoop (Boolean Modal, System.Windows.Forms.ApplicationContext context) [0x00000] in <filename unknown>:0
  at System.Windows.Forms.Application.Run (System.Windows.Forms.ApplicationContext context) [0x00000] in <filename unknown>:0
  at System.Windows.Forms.Application.Run (System.Windows.Forms.Form mainForm) [0x00000] in <filename unknown>:0
  at KeePass.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0
Void Add(System.Windows.Forms.Control)

Regards