Instruments无法启动

最近在iOS7的系统上使用Instrument想检查内存的leaks，启动时候总是提示失败，花了些时间，解决了这个问题，做下笔记。

##issue

Error Starting Recording
At least one target failed to launch; aborting run


Target failed to run. Permisson to debug [app name] was denied. The app must be signed with a development identity (i.e. iOS Developer)

##fix

Product-->Scheme-->Edit Scheme,将Profile那栏中的Build Configuration将Release改为Debug

##issue
1.如果发现leaks视图无法监控到任何的内存泄露，说明你开启了Zombie，将Scheme菜单中的Enable Zombie Objects勾去就可以了
2.检查你是否启用了环境变量，变量中是否开启了zombie设置