Web camera plugin

Glad to this plugin,but a problem appears in UE4.12

i am glad to find this plugin using directshow to show my web camera,before i hace used opencv plugin to show two web cameras but it can’t show two same web camera at the same time,can show two differ web camera at the same time.
so i find your plugin using direct show,but when want to open ,it appears can’t compile, i opened the project by visual studio ,see some problems i can’t solve.could you help me?
the problems shows like the pic: