I managed to successfully build and install an add hoc app onto my iPhone. However, as soon as I launch the app on the device, I see the splash screen for a second, then the app closes.
It was my assumption that since the splash screen was displayed that my app code was being run. However, after reading about application bootstrapping on the iPhone, it looks like the iPhone OS first displays Default.png before even running your main function. This made me realise that my application code probably wasn’t even being run at all.
To further my bewilderment, installing via iTunes on a PC worked just fine while installing on a Mac using iTunes wasn’t working.
Inspecting the .app folder showed me that CodeResources file was a file instead of a Symbolic link. Bewildered why that might be, I tracked the problem down to our build system. Our build system uses Ant to zip the .app folder up and send over email. Turns out that the ant zip task resolves symbolic links before adding the link to the archive. Hence the corrupted .app file.
Oddly enough, the iTunes version for windows is smart enough to parse this (probably because symbolic links don’t exist on the PC), where as iTunes on mac doesnt.
Bizare …..
David Quail 
I've been hitting a similar problem. When trying to upload my application to the App Store I get the error:"The binary you uploaded was invalid. The CodeResources file must be a symbolic link to _CodeSignature/CodeResources. Make certain that the bundle is on a locally-mounted volume (not a remote SMB volume), and be certain to use the Mac OS X Finder to compress it."I have a build script that ZIPs up my deliverable, so I'm going to try and use the "-y" option to the zip command to preserve the symbolic links. Your post was helpful in making me realize what the problem was…
Hey,
I just ran upon this post after searching google for that error i was getting from iTunes Connect when I was trying to upload my updated binary. I get, “The binary you uploaded was invalid. The CodeResources file must be a symbolic link to _CodeSignature/CodeResources. Make certain that the bundle is on a locally-mounted volume (not a remote SMB volume), and be certain to use the Mac OS X Finder to compress it.”
I’ve been sharing with dropbox so I can work on two different computers with the project. It would be a huge help if you can tell me how I can fix this.
Thanks!
Were you able to find a solution to this problem. I am using Dropbox to share files and work off of two computers.
THanks,
-Ramin