使用高德地图编译时出现：
warning: (armv7) /Users/xiaominghan/Desktop/autonavi/framework-131031/MAMapKit/MAMapKit/MAMapKit/src/plugin/offset/liboffset_Release.a(offset.o) unable to open object file
解决办法：在targets里面的build settings里的buildoptions的Debug
Information Format 设置成DWARF
原文：http://blog.csdn.net/fucheng56/article/details/21370827