Hello, I was in the same position as you three months ago,so as a fellow java programmer I recommend you first to review a tutorial about C++ Object Oriented without ue4 library since there are difference between java and c++(70% of the stuff probably you already know,but there are some things like pointers,call by value,etc that you may be not familiar with),after that you can go for the ue4 c++ tutorial starting a new project from zero (since for me it was easy to catch the things on fly).The downside is that there aren’t so many c++ ue4 tutorials on web as far as I know but they do have some nice youtube series in c++ and a shooterGame that you can download as example :). As for xcode IDE I’m not very familiar with it but my guess is that you didn’t use correctly the macro or importing problems.Best of luck