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While running a project into the simulator, it crashes after booting:

Crash: 'NSInternalInconsistencyException', reason: 'Device <redacted>, Booted) is available but has no defaultDisplay'

I already cleaned the project files and changed the iOS image but it crashes anyway. Any clue?

ricardopereira
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1 Answers1

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Close all simulators and just run 

sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService

to restart the service. All simulators will launch as usual.

Valentin Mercier
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ricardopereira
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    This answer is a true lifesaver, thank you. Sadly, this issue still persists in the final version of Xcode 10. – Tamás Sengel Sep 18 '18 at 05:36
  • This helped, but I would like to know what causes this issue? – SofDev Oct 12 '18 at 14:32
  • This glitch can manifest when toggling between different versions of Xcode. For example, it is repeatable when I initially open an app in Xcode 9.2, then later in Xcode 10. As @ricardopereira notes, killall will reset the sims. –  Oct 12 '18 at 15:23
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    saved it as an alias # Kill all simulator and restart the service `alias ksim='sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService'` – lal Nov 06 '18 at 20:06