使用xcode4.5的Zxing编译出错问题解决方案

环境：xcode4.5  zxing版本r2461

问题描述：使用模拟器编译没问题，但是编译进device会出错

　　ld: warning: ignoring file xx/Build/Products/Debug-iphoneos/libZXingWidget.a, file was built for archive which is not the architecture being 　　　　　　linked (armv7s): xx/Build/Products/Debug-iphoneos/libZXingWidget.a

　　 　　"_OBJC_CLASS_$_ZXingWidgetController", referenced from:

　　　　objc-class-ref in MZHomePageViewController.o

　　　　"_OBJC_CLASS_$_QRCodeReader", referenced from:

　　　　objc-class-ref in MZHomePageViewController.o

　　　　ld: symbol(s) not found for architecture armv7s

 

解决方案：设置“Architectures" 和 "Valid Architectures

如图所示：