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.