http://blog.blong.com/2012/06/firemo...-and-info.html
Sehr ausführlicher Blogbeitrag, empfiehlt unter anderem wegen Kommandozeilentools XCode 4.2 vor 4.3 zu installieren.
Und:
https://forums.embarcadero.com/messa...ssageID=468683
enthält u.a. diese Anleitung:
1) Scour all old Xcode pieces from machine as above
2) Install Xcode 4.2.1
3) Make sure you have the latest "Update 4 Hotfix 1"
RAD Studio install from us and especially the latest DMG on the Mac side.
4) Launch Xcode 4.2.1 and test everything first. A simple app like a project with a dead button is what I usually use. Simulator should be good enough to see it all works.
5) Download and install 4.3.3 and here is the IMPORTANT part: When it asks you to install the previous Xcode, say NO! Otherwise it will kill our install as well and our scripts were not written to
handle all of the changes 4.3.2 threw at us.
6) Make new, clean projects for tests and not your existing stuff just to make sure it all works first. Once you can confirm everything is working, then try your projects.