OMG... I'm in the last step here and i cant find an answer for this. it seems that a lot of people on the internet it's ahving the same problem. but doenst have an answer. Okay. so.. i have already do the test on my device, submit to itunes connect, downloaded the application loader. And now i just need to submit. but now when i submit everything goes well, except in the end it wont allow me to send, because it says: application failed codesign verification. the signature was invalid (this problem it's happening at the aplication loader) i checked everything, my certificate, key, the build was success full and i can send to apple store. does anyone is having the same problem. Please help me. Thanks

I feel your pain, I really do. I struggled in the early days to get this all figured out, hence, the creation of this site! It really should be easier than they make it. And, it should be easier than your having too - sorry for that. 1) Be sure you have the Bundle Identifier set in the .plist file (in the Config folder) and the Project Properties screen, like you posted earlier. 2) Be sure you have Device | Release selected in the drop-down list. This is different than Device | Distribution or Device | Debug. It must be Release. If you don't have a Release configuration option, create a new configuration like you did earlier but name it Release instead of Distribution. 3) Quit Xcode 4) Re-start Xcode, 'Clean All Targets' from the build menu 5) Build (not Build and Run) with Device | Release selected If you code signing certificate on iTunes is for App Store, and your Bundle Id is set properly it will work. Not sure how else to guide you? I'll be gone most of tomorrow and hope someone else can jump in to help you if you can't get this worked out. It sure sounds to me like you are still Building (compiling) for Distribution, this is different than Release.

I got this too, went through the suggestions above but still not working. Moapp did you figure it out? :(

ok got it to work! plug in your phone and make sure its unlocked, then hit build and run.

(sort of - it hangs a bit on my phone but did play once!)

nope, not working now when i try to build for release, I get the same error.

I had the same problem. I read David Book instruction then follow it. I submit my app now. I think our mistake is that we chose build and run. Maybe we suppose to chose only buil as David said because when I chose build only it works with me :-)

I'm running into this problem, but can't figure it out. It is driving me up the walls!!! Please help!!!!