New Post: XmlLayoutSerializer - FileNotFountException

It works but now I get a new exception during deserialize.
Exception thrown: 'System.NullReferenceException' in Xceed.Wpf.AvalonDock.dll
Exception thrown: 'System.Reflection.TargetInvocationException' in mscorlib.dll
the Default-Layout was load but deserialize crashed because LayoutElement.Root == null