Xcode 报错汇总

iOS报错

1>ld: -pie can only be used when targeting iOS 4.2 or later clang: error: linker command failed with exit code 1 (use -v to see invocation)解决方法：点击工程project-》build setting --》搜索IPHONEOS_DEPLOYMENT_TARGET 修改为4.2以后

2>Unsupported compiler 'com.apple.compilers.llvmgcc42' selected for architecture 'armv7'或'armv7s'解决办法：Build Settings->Build OPtions->compiler for C/C++/ObjectiveC; select Default(Apple LLVM5.0)

3>property follows cocoa naming convention for returning ‘owned’ objects 原因：系统拥有不能这样命名

4>CUICatalog: Invalid asset name supplied:报错原因：[UIImage imageNamed:name];但是这个name却是空的，所以就报了这个错了。解决办法：在项目中搜索UIImage imageNamed:,然后打印看看所谓的name是否为空。找到后替换。