使用百度地图2.9sdk Undefined symbols for architecture x86_64: "_NSBackgroundColorAttributeName", 问题解决方法
在使用百度地图SDK2.9时出现如下错误:Undefinedsymbolsforarchitecturex86_64:"_NSBackgroundColorAttributeName",referencedfrom:_baidu_vi::vi_map::GenTextTextrue(unsignedint&,unsignedshort*,unsignedint,unsignedint,unsign