问题
My app runs fine on the iPhone 6.0 Simulator in Xcode, but when I try to run it on my 6.0 device, I get the following fatal error:
dyld: Library not loaded: /System/Library/Frameworks/AdSupport.framework/AdSupport Referenced from: /var/mobile/Applications/26329A7C-04B0-415A-B8EB-3C59CC1EC0B1/hammerhead.app/hammerhead Reason: image not found
I am sure that my Phone has version 6.0 and is up to date. My deployment target is set to 6.0 in my project file and in my info.plist file. What should I do?
The problem seems to be with the AdSupport framework, which I put in my app so the new Facebook SDK (3.1) could function with iOS 6.
回答1:
If you're targeting iOS versions less than 6.0, you'll need to make AdSupport.framework, Social.framework, and Accounts.framework optionally-linked.
Please have a look at the attached screenshot.
Cheers!!!
回答2:
Solved my own problem: Set the frameworks that are giving you problems to "Optional" instead of "Required" by going to the project file Summary and scrolling down to Linked Frameworks and Libraries.
回答3:
Same for CloudKit.framework on iOS 7 (it is for iOS8 only). Go to General > Linked Frameworks and Libraries, change CloudKit.framework to Optional. Thanks VSN.
来源：https://stackoverflow.com/questions/12594070/dyld-library-not-loaded-different-behavior-for-6-0-simulator-6-0-device