Fix XCode Errors about Simulator in use and lost connection

Question

These errors keep happening from time to time when i run my app. There doesn't seem to be any rhyme or rhythm to when the errors happen. Sometimes I can run and quit my app 100 times and not see these. Sometimes every 5 times they will show up. They go away but they are slowing down the dev process. How can I fix the underlying issue?

Answer 1

In my experience, these 3 cases occur in 3 different scenarios.

1. " Springboard Error " is a common iOS simulator issue since Xcode 5.

   • It has no fix, as yet, other than restarting the iOS simulator.
     .

2. " lost connection " occurs when you disconnect the device or quit the simulator prematurely.
   ( example: click run and then stop it almost immediately )

3. " Simulator in use " occurs when you're already running, say, ABC xcode project in the iOS simulator and you want to run another Xcode project, say, XYZ project in the iOS simulator simultaneously.

   • Go to ABC project, stop it and then run XYZ project.