xcode build fail - Mach-o linker error

Questions & Answers
1

I have made a new project with nothing in it. I have made a scene with a camera and a cube. So there is nothing in my scene that is causing the problem. I will build the game and try to run it in xcode, but it fails. I have tried cleaning the project. I have tried running it on my iphone, running 6.0 simulator, 5.0 sim, 4.3 sim. It all fails Xcode gives me 2 warnings, and 2 errors. And the build will fail.

Unity Version: 3.5.0f5 (Mac OS X)
Xcode version: 4.5.1

Error copied and pasted from xcode:

ld: warning: directory not found for option ‘-L"/Users/davidhogan/testProject2/build"’
ld: warning: directory not found for option ‘-L"/Users/davidhogan/testProject2/build/Libraries"’
Undefined symbols for architecture i386:
“ConvertToUnityScreenOrientation(int, EnabledOrientation*)”, referenced from:
-[UnityViewController shouldAutorotateToInterfaceOrientation:] in AppController.o
-[UnityViewController willRotateToInterfaceOrientation:duration:] in AppController.o
-[UnityViewController didRotateFromInterfaceOrientation:] in AppController.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

I have tried messing around with the options in the player setting in unity with no success. I am new to this. Please help me out

2

Your unity version is incompatible with the version of XCode that you have. You need to upgrade to the latest Unity version in order to use XCode 4.5.1 in conjunction with iOS6 as well.

That’s the only way to fix it unless you can sort through the AppController.mm file yourself and possibly solve the Mach-O errors.

3

I had the same problem.
I made a video to show you how to fix it.

4

I had the same problem.
I made a video to show you how to fix it.