dyld: Symbol not found: _NSDictionary0 错误解决

dyld: Symbol not found: _NSDictionary0
Referenced from: /private/var/mobile/Containers/Bundle/Application/4420F418-8474-4522-9F18-7C539794080C/YXTDownloaderDemo.app/YXTDownloaderDemo
Expected in: /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
in /private/var/mobile/Containers/Bundle/Application/4420F418-8474-4522-9F18-7C539794080C/YXTDownloaderDemo.app/YXTDownloaderDemo

真机调试的时候显示这个问题
需要在link binary with library 里面添加
corefoundation.framework 选择option

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