iOS7与Xcode 6的兼容性

Question

I want to make my iOS8 app compatible with iOS 7.0 but, it gives the following error log.

By referring previous questions, I have tried re-adding certain frameworks and making them optional to no avail. Please help me here.

dyld: Symbol not found: _OBJC_CLASS_$_CIKernel
  Referenced from: /var/mobile/Applications/3F71E632-C303-4C7E-9DA5-BE70B8D2C8FD/xxxxx.app/xxxxx
  Expected in: /System/Library/Frameworks/CoreImage.framework/CoreImage
 in /var/mobile/Applications/3F71E632-C303-4C7E-9DA5-BE70B8D2C8FD/xxxxx.app/xxxxx

Answer 1

尝试在“常规”选项卡下的“ 链接的框架和库”部分中将CoreImage.framework设置为可选。