Build is succesfull but there is no Xcode file

Hi everybody,

I made a game for Android and that works fine. Now I am trying to to test the game for iOS. For the build I use the tutorial of Unity itself. Everything goes well (I downloaded and installed Xcode, added my Apple ID, switched platforms and clicked the Build button). All seems to go okay but in the end I get a folder which is empty? I can't really figure out what goes wrong. Maybe someone can help me out.

Thank you in advance!!!!

Cheers.

Jonah