Export / Import XMI (#291)

Dear developers,

we are considering your software as a UML design program but it does not work with XMI. It neither import XMI file nor export some dummy class diagram.

Here is some log:

System.NullReferenceException: В экземпляре объекта не задана ссылка на объект.

в SoftwareIdeasModeler.Core.Projecting.ModelElement.GetAllNestedElements()

в SoftwareIdeasModeler.Core.Xmi.NewXmiExporter.AddClass(PackagedElement package, UmlClass umlClass)

в SoftwareIdeasModeler.Core.Xmi.NewXmiExporter.AddItem(PackagedElement package, ModelElement item)

в SoftwareIdeasModeler.Core.Xmi.NewXmiExporter.AddDiagram(XmiUmlModel xmiModel, Diagram diagram)

в SoftwareIdeasModeler.Core.Xmi.NewXmiExporter.AddModel(XmiFile file, Model model)

в SoftwareIdeasModeler.Core.Xmi.NewXmiExporter.AddModels(XmiFile file, List`1 models)

в SoftwareIdeasModeler.Core.Xmi.NewXmiExporter.ExportToFile(String filename)

в SoftwareIdeasModeler.MainForm.xmiToolStripMenuItem_Click(Object sender, EventArgs e)

в System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)

в System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)

в System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)

в System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)

в System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)

в System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)

в System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)

в System.Windows.Forms.Control.WndProc(Message& m)

в System.Windows.Forms.ToolStrip.WndProc(Message& m)

в System.Windows.Forms.ToolStripDropDown.WndProc(Message& m)

в System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

в System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)