Created Unassigned: error occurs when using ExpressionDark Theme and ExpressionLight Theme [17649]

Hi,
I've downloaded the AvalonDock 2.0 source code and built the solution.
Running AvalonDock.TestApp project in the solution, I've found an error..
Only when using ExpressionDark or ExpressionLight Theme in the MainWindow.xaml, the following error messages are shown..

System.Windows.Data Error: 40 : BindingExpression path error: 'IsFloating' property not found on 'object' ''LayoutAnchorablePane' (HashCode=48726214)'. BindingExpression:Path=Model.IsFloating; DataItem='LayoutAnchorablePaneControl' (Name=''); target element is 'LayoutAnchorablePaneControl' (Name=''); target property is 'NoTarget' (type 'Object')

System.Windows.Data Error: 1 : Cannot create default converter to perform 'one-way' conversions between types 'Xceed.Wpf.AvalonDock.Layout.LayoutContent' and 'Xceed.Wpf.AvalonDock.Layout.LayoutAnchorable'. Consider using Converter property of Binding. BindingExpression:Path=Model.SelectedContent; DataItem='LayoutAnchorablePaneControl' (Name=''); target element is 'AnchorablePaneTitle' (Name=''); target property is 'Model' (type 'LayoutAnchorable')

System.Windows.Data Error: 40 : BindingExpression path error: 'Model' property not found on 'object' ''LayoutAnchorable' (HashCode=60157233)'. BindingExpression:Path=Model.IsSelected; DataItem='LayoutAnchorable' (HashCode=60157233); target element is 'LayoutAnchorableTabItem' (Name=''); target property is 'NoTarget' (type 'Object')