Gtk-Message: 17:00:02.830: Failed to load module "canberra-gtk-module"
X11 Error encountered: 
  Error: BadMatch (invalid parameter attributes)
  Request:     12 (0)
  Resource ID: 0x4C00105
  Serial:      3953
  Hwnd:        Hwnd, Mapped:True ClientWindow:0x4C00106, WholeWindow:0x4C00105, Zombie=False, Parent:[Hwnd, Mapped:True ClientWindow:0x4C00102, WholeWindow:0x4C00101, Zombie=False, Parent:[<null>]]
  Control:     System.Windows.Forms.MenuStrip, Name: menuStrip1, Items: 5  at System.Environment.get_StackTrace () [0x00000] in <12b418a7818c4ca0893feeaaf67f1e7f>:0 
  at System.Windows.Forms.XplatUIX11.HandleError (System.IntPtr display, System.Windows.Forms.XErrorEvent& error_event) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.XplatUIX11.XGetWMNormalHints (System.IntPtr , System.IntPtr , System.Windows.Forms.XSizeHints& , System.IntPtr& ) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.XplatUIX11.SetWindowMinMax (System.IntPtr handle, System.Drawing.Rectangle maximized, System.Drawing.Size min, System.Drawing.Size max, System.Windows.Forms.CreateParams cp) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.XplatUIX11.SetWMStyles (System.Windows.Forms.Hwnd hwnd, System.Windows.Forms.CreateParams cp) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.XplatUIX11.CreateWindow (System.Windows.Forms.CreateParams cp) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.XplatUI.CreateWindow (System.Windows.Forms.CreateParams cp) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.NativeWindow.CreateHandle (System.Windows.Forms.CreateParams cp) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.CreateHandle () [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.CreateControl () [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.CreateControl () [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.WmShowWindow (System.Windows.Forms.Message& m) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.WndProc (System.Windows.Forms.Message& m) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.ScrollableControl.WndProc (System.Windows.Forms.Message& m) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.ContainerControl.WndProc (System.Windows.Forms.Message& m) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Form.WndProc (System.Windows.Forms.Message& m) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control+ControlWindowTarget.OnMessage (System.Windows.Forms.Message& m) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control+ControlNativeWindow.WndProc (System.Windows.Forms.Message& m) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.NativeWindow.WndProc (System.IntPtr hWnd, System.Windows.Forms.Msg msg, System.IntPtr wParam, System.IntPtr lParam) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.XplatUIX11.SendMessage (System.IntPtr hwnd, System.Windows.Forms.Msg message, System.IntPtr wParam, System.IntPtr lParam) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.XplatUIX11.MapWindow (System.Windows.Forms.Hwnd hwnd, System.Windows.Forms.WindowType windows) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.XplatUIX11.CreateWindow (System.Windows.Forms.CreateParams cp) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.XplatUI.CreateWindow (System.Windows.Forms.CreateParams cp) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.NativeWindow.CreateHandle (System.Windows.Forms.CreateParams cp) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.CreateHandle () [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Form.CreateHandle () [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.CreateControl () [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.SetVisibleCore (System.Boolean value) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Form.SetVisibleCore (System.Boolean value) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.set_Visible (System.Boolean value) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Form.SetVisibleCore (System.Boolean value) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.set_Visible (System.Boolean value) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Application.RunLoop (System.Boolean Modal, System.Windows.Forms.ApplicationContext context) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Application.Run (System.Windows.Forms.ApplicationContext context) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Application.Run (System.Windows.Forms.Form mainForm) [0x00000] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at CharPad.Program.Main () [0x00000] in <0a3ceb2f86264d6aa71a44e1bef49f6b>:0 


Unhandled Exception:
System.ArgumentNullException: Value cannot be null.
Parameter name: sourceToolStrip
  at System.Windows.Forms.ToolStripManager.RevertMerge (System.Windows.Forms.ToolStrip targetToolStrip, System.Windows.Forms.ToolStrip sourceToolStrip) [0x00017] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.ToolStripManager.RevertMerge (System.Windows.Forms.ToolStrip targetToolStrip) [0x00018] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at CharPad.Form_Main.Form_Main_MdiChildActivate (System.Object sender, System.EventArgs e) [0x00006] in <0a3ceb2f86264d6aa71a44e1bef49f6b>:0 
  at System.Windows.Forms.Form.OnMdiChildActivate (System.EventArgs e) [0x0001c] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Form.ActivateMdiChild (System.Windows.Forms.Form form) [0x00018] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.Form.ActivateMdiChild(System.Windows.Forms.Form)
  at System.Windows.Forms.Form.SetVisibleCore (System.Boolean value) [0x0016c] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.set_Visible (System.Boolean value) [0x0000c] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.Control.set_Visible(bool)
  at System.Windows.Forms.Form.SetVisibleCore (System.Boolean value) [0x00115] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.set_Visible (System.Boolean value) [0x0000c] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.Control.set_Visible(bool)
  at System.Windows.Forms.Application.RunLoop (System.Boolean Modal, System.Windows.Forms.ApplicationContext context) [0x0005f] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Application.Run (System.Windows.Forms.ApplicationContext context) [0x00014] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Application.Run (System.Windows.Forms.Form mainForm) [0x00006] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at CharPad.Program.Main () [0x00010] in <0a3ceb2f86264d6aa71a44e1bef49f6b>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.ArgumentNullException: Value cannot be null.
Parameter name: sourceToolStrip
  at System.Windows.Forms.ToolStripManager.RevertMerge (System.Windows.Forms.ToolStrip targetToolStrip, System.Windows.Forms.ToolStrip sourceToolStrip) [0x00017] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.ToolStripManager.RevertMerge (System.Windows.Forms.ToolStrip targetToolStrip) [0x00018] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at CharPad.Form_Main.Form_Main_MdiChildActivate (System.Object sender, System.EventArgs e) [0x00006] in <0a3ceb2f86264d6aa71a44e1bef49f6b>:0 
  at System.Windows.Forms.Form.OnMdiChildActivate (System.EventArgs e) [0x0001c] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Form.ActivateMdiChild (System.Windows.Forms.Form form) [0x00018] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.Form.ActivateMdiChild(System.Windows.Forms.Form)
  at System.Windows.Forms.Form.SetVisibleCore (System.Boolean value) [0x0016c] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.set_Visible (System.Boolean value) [0x0000c] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.Control.set_Visible(bool)
  at System.Windows.Forms.Form.SetVisibleCore (System.Boolean value) [0x00115] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Control.set_Visible (System.Boolean value) [0x0000c] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.Control.set_Visible(bool)
  at System.Windows.Forms.Application.RunLoop (System.Boolean Modal, System.Windows.Forms.ApplicationContext context) [0x0005f] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Application.Run (System.Windows.Forms.ApplicationContext context) [0x00014] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at System.Windows.Forms.Application.Run (System.Windows.Forms.Form mainForm) [0x00006] in <a3daa9b84fd241a497578a25f68bc3c7>:0 
  at CharPad.Program.Main () [0x00010] in <0a3ceb2f86264d6aa71a44e1bef49f6b>:0