from v8.56 to v9.10

Hi,

Please, i've got an error when reading a file which was previously saved in v8.56 with a v9.10 program (seeing next).

Is there a special procedure for updating files before upgrading ?

Thanks a lot,

System.NullReferenceException: La référence d'objet n'est pas définie à une instance d'un objet.

à SoftwareIdeasModeler.Core.DiagramItems.Concrete.ConcreteRelation.UpdatePoints()

à SoftwareIdeasModeler.Core.DiagramItems.Concrete.ConcreteRelation.CalculateLayout(DiagramDrawer drawer, String relationText, Boolean renderName)

à SoftwareIdeasModeler.Core.DiagramItems.ErdItems.ConcreteErdRelation.CalculateLayout(DiagramDrawer drawer, String relationText, Boolean rendersName)

à SoftwareIdeasModeler.Core.Projecting.Project.RefreshLayout()

à SoftwareIdeasModeler.ProjectXml.SimXmlReader.Load()

à SoftwareIdeasModeler.ProjectHelper.LoadProject(String filename, Boolean showReadOnlyWarning, Boolean checkFileVersion, Boolean processCustomDiagrams)

à SoftwareIdeasModeler.ProjectHelper.OpenProject(MainForm mainForm, String filename)