打开工程后－－show in finder 找到xx.xcodeproj 右键 选择如图所示用终端机打开
然后依次输入如图红线标记所示的命令
如果成功则会有如下字样提示：
最后需要压缩一个zip文件以上传到fb进行审核
compress the simulator build into a zip file. The build that was generated was placed into:
{base directory}/build/Release-iphonesimulator/{projectname}.app
Generate a Simulator Build command
原文：http://www.cnblogs.com/billy-chou/p/3999567.html