I did mean the Android section in the options/preferences – maybe I didn’t write that clear enough 😉
Actually, it shouldn’t be necessary to manually add a Qt Kit for Android. After everything is installed, it should be auto-detected.
Did you maybe miss the installation of the Qt packages for Android? They are also required besides the Android SDK/NDK.
You can install them with the MaintenanceTool in your V-Play installation folder. Choose “Add or remove components” and select “Android armv7” in the Qt/Qt 5.5 section.