Semantic Issues

Hello, I have just made my first new project in cocos2d-x, but when I compiled the newly created projects i noticed that there were over 200 warnings, over half were semantic issues and the other warnings with code that i didn’t even touch. I was wondering if that was okay and I should just ignore them, or if I need to fix something. By the way, I have a mac and I am using the latest version of xcode and the alpha 3.0 cocos2d-x.

Thanks,
Jsmalls