I have leanred UE4 for a little time and I tried to package my project recently.I downloaded Tango plugin on unreal market and added to my project. I don’t know whether it is the reason of packaging error and I tried to launch my project and it showed a message like"Lacking of UE4game binary files please compiling with ide or … " . The engine which I used was downloaded by Epic Launcher. It should not be short of some files ? please help me .