Exception Time Frame (#298)
System.NullReferenceException: Object reference not set to an instance of an object.
at SoftwareIdeasModeler.Core.DiagramItems.UmlObjects.Timing.ConcreteUmlTimingLifeline.NormalizeAfterBoundsChange()
at SoftwareIdeasModeler.Core.DiagramItems.UmlObjects.Timing.ConcreteUmlStateLifeline.NormalizeAfterBoundsChange()
at SoftwareIdeasModeler.Core.Commands.BoundsCommand.Execute()
at SoftwareIdeasModeler.Core.Commands.CombinedCommand.Execute()
at SoftwareIdeasModeler.Core.Projecting.CommandStack.AddCommand(Command command, Boolean execute)
at SoftwareIdeasModeler.Core.Projecting.Project.Execute(Command cmd)
at SoftwareIdeasModeler.DiagramTools.SelectionTool.ChangeBounds(EnhancedMouseEventArgs e, Boolean finalPosition)
at SoftwareIdeasModeler.DiagramTools.SelectionTool.MouseUp(EnhancedMouseEventArgs e)
at SoftwareIdeasModeler.SimDiagramControl.canvas_MouseUp(Object sender, MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)