找不到体系结构armv7的符号(链接器命令失败，退出代码为1) [英] symbol(s) not found for architecture armv7s (linker command failed with exit code 1)

问题描述

当我为IOS7构建Xcode 5时，出现此错误:

When I build in Xcode 5 for IOS7 I get this error:

Undefined symbols for architecture armv7s:
  "_OBJC_CLASS_$_CIFilter", referenced from:
      objc-class-ref in UIImage+Filter.o
  "_kCIInputImageKey", referenced from:
      -[UIImage(Filter) filterWithPreset:] in UIImage+Filter.o
  "_OBJC_CLASS_$_CIImage", referenced from:
      objc-class-ref in UIImage+Filter.o
  "_OBJC_CLASS_$_CIContext", referenced from:
      objc-class-ref in UIImage+Filter.o
ld: symbol(s) not found for architecture armv7s
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我注意到，如果删除UIImage + Filter.h/m文件和UIImageView + Filter.h/m，错误就会消失

I notice that the error goes away if I remove the UIImage+Filter.h/m file and UIImageView+Filter.h/m

推荐答案

容易...确保导入CoreImage框架

Easy... Make sure you import CoreImage framework

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