import Python code FAILS (#1723)

System.NullReferenceException: Object reference not set to an instance of an object.

at SoftwareIdeasModeler.Core.Algorithms.PathFinding.DiagramMapBuilder.BuildHitTestMap()

at SoftwareIdeasModeler.Core.Algorithms.PathFinding.DiagramMapBuilder..ctor(Diagram diagram)

at SoftwareIdeasModeler.Core.Layouts.EnhancedSmartLayoutMaker.LayoutRelationships()

at SoftwareIdeasModeler.Core.Layouts.EnhancedSmartLayoutMaker.Layout()

at SoftwareIdeasModeler.Core.Commands.Layout.LayoutCommand.Execute()

at SoftwareIdeas.Common.Commands.CombinedCommand.Execute()

at SoftwareIdeas.Common.Commands.CommandStack.AddCommand(Command command, Boolean execute)

at SoftwareIdeas.Common.Commands.CommandStack.Execute(Command command)

at SoftwareIdeasModeler.Core.Projecting.Project.Execute(Command cmd)

at SoftwareIdeasModeler.Dialogs.Importing.SourceCode.SourceCodeImporter.Import()

at SoftwareIdeasModeler.Dialogs.Importing.SourceCode.ImportForm.okButton_Click(Object sender, EventArgs e)

at System.Windows.Forms.Control.OnClick(EventArgs e)

at System.Windows.Forms.Button.OnClick(EventArgs e)

at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)

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

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

at System.Windows.Forms.ButtonBase.WndProc(Message& m)

at System.Windows.Forms.Button.WndProc(Message& m)

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

OF=SoftwareIdeasModeler.MainForm

LastCmds=

[0]: SoftwareIdeasModeler.Core.Commands.AddFolderCommand; SoftwareIdeasModeler.Core.Commands.AddFolderCommand

OF=SoftwareIdeasModeler.Dialogs.Importing.SourceCode.ImportForm