Unable to build RxUI_QCon - DependencyResolver and IMutableDependencyResolver not resolved

[AndreFrelicot]

Hi,
I'm getting theses errors when compiling the sample. What I'm missing ?

Error 3 'ReactiveUI.RxApp' does not contain a definition for 'DependencyResolver' C:---\RxUI_QCon-master\RxUI_QCon-master\RxUI_QCon.WinForms\MainWindow.cs 14 63 RxUI_QCon.WinForms

Error 2 The type or namespace name 'IMutableDependencyResolver' could not be found (are you missing a using directive or an assembly reference?) C:---\RxUI_QCon-master\RxUI_QCon-master\RxUI_QCon.WinForms\MainWindow.cs 14 29 RxUI_QCon.WinForms

thx