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I get a __dyld_dyld_fatal_error when trying to run my app on an iOS3 device:

dyld: Symbol not found: _OBJC_CLASS_$_NSBlockOperation Referenced from: /var/mobile/Application/.......
Expected in: /System/Library/Frameworks/Foundation.framework/Foundation

My guess is that this is due to the fact that blocks aren't supported in iOS3. However, I'm having trouble tracking down which library is referencing NSBlockOperation. Is there a tool similar to dependency walker, that I can use to figure out which module it is?

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1 回答 1

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您需要将部署目标设置为 iOS 3.x。

于 2012-09-22T03:16:44.140 回答