для ясности,
выскакивают следующие ошибки:
[creator@host-15 Release]$ mono ./Моя_Программа.exe

(ShedulerCHSU:5941): Gtk-CRITICAL **: gtk_fixed_move_internal: assertion 'widget->parent == GTK_WIDGET (fixed)' failed
Marshaling clicked signal
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object
  at ShedulerCHSU.Forms.ShedulesMain.OnButton2Clicked (System.Object sender, System.EventArgs e) [0x00000] in <filename unknown>:0
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  --- End of inner exception stack trace ---
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0
  at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0
  at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0
  at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0
  at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0
  at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0
  at GLib.SignalClosure.MarshalCallback (IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data) [0x00000] in <filename unknown>:0
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   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 ShedulerCHSU.MainClass.Main(System.String[] args)

(ShedulerCHSU:5941): GLib-CRITICAL **: Source ID 25 was not found when attempting to remove it

(ShedulerCHSU:5941): GLib-CRITICAL **: Source ID 24 was not found when attempting to remove it

https://packages.altlinux.org/en/Sisyphus/srpms/monodevelop

Sisyphus:	6.1.2.44-alt1

Перевесил на p8

Просьба обновить в p8

JFYI

обновление небольшое, из текущего Sisyphus на p8 без в .src.rpm пересобираются следующие пакеты:

 rpm-build-mono
 mono
 fsharp
 libgtk-sharp2
 libgnome-sharp
 referenceassemblies-pcl
 xsp
 monodevelop

(In reply to comment #5)

> без в .src.rpm

^^^ без изменений в .src.rpm

Версия 6.2.1.44 уже в p8.