Dear Lazyweb,
I finally got registered for the iPhone app developer program. I created a certificate for “iPhone Developer: Jake Sprouse”, uploaded it to Apple, approved it, and downloaded it into my Keychain. I registered the Device ID of my iPhone on the Apple website. I created an App ID for all jakesprouse.net applications (it’s of the form NNNNNNNNNN.net.jakesprouse.*). And I created a provisioning profile with the certificate, Device ID, and App ID.
In my XCode project, I changed the “Code Signing Identity” field to “iPhone Developer: Jake Sprouse” under my provisioning profile in the drop-down. And I changed the “Bundle identifier” field of my Info.plist to NNNNNNNNNN.net.jakesprouse.${PRODUCT_NAME:identifier}.
Now, when I build it, I get the error message: /Users/jakes/src/MyApp/build/Debug-iphoneos/MyApp.app: object file format invalid or unsuitable.
If I build a second time, it works, but when it goes to install the app, the Organizer window tells me “The Info.plist for application at /Users/jakes/src/Sac4iPhone/build/Debug-iphoneos/Sac4iPhone.app specifies a CFBundleExecutable of (null), which does not exist“.
If I build a third time, I get the object file format error again (and so on…).
Searching Google on codesign + "object file format" is not being very helpful. Anyone out there have any ideas?


December 22nd, 2008 at 9:51 pm
With help from @mdhughes, I was able to get my app running.
* Info.plist was being included in the main target. Apparently this was causing the “object file format” error.
* Using “net.jakesprouse.${PRODUCT_NAME:identifier}” instead of “NNNNNNNNNN.net.jakesprouse.${PRODUCT_NAME:identifier}” cleared up the CFBundleExecutable issue.
* Cleaning and rebuilding early and often seems to be a good idea.
March 23rd, 2009 at 4:13 am
Thanks for pointing out it was the plist thing, took forever to find someone with a clue
Thanks for the post.
April 13th, 2009 at 5:26 pm
Restart x-code, that fixed it for me….
July 2nd, 2009 at 2:49 pm
Indeed remove the Info.plist from copy resources, clean all, and restart XCode