问题
I'm running into minor annoyance with XCode when building one of my targets, build is successful but once it comes to launching it in simulator I get this prompt
This app could not be installed at this time.
This happens only when app was installed on the simulator before hand i.e. removing it and building again works fine.
This issue doesn't happen when I run my original target.
来源：https://stackoverflow.com/questions/48707048/xcode-this-app-could-not-be-installed-at-this-time