Create-react-native-app: npm run ios fails because Error: Process exited with non-zero code: 107

[NirBenya]

Starting packager...
Starting simulator...
Failed to start simulator:

Error: Process exited with non-zero code: 107

Exiting...

[NirBenya]

solved by doing Simulator --> Reset Content and Settings, and then restarting the simulator.

[anp]

Thanks! Need to add a "troubleshooting iOS simulator" section to the user guide.

[somsin]

2:36:16 PM: Failed to start simulator
Process exited with non-zero code: 194

[nimish-gupta]

Same here error 194

[Charliekenney23]

If you're on the Xcode 9 beta: Simulator -> Hardware -> Erase all content and settings

[Inlesco]

Yep - on Xcode 9, in Simulator's action tab, nav to Hardware -> Erase all content and settings.

error's non-zero code: 60.

[ahmedu007]

Instead of Erase all content and settings I just removed expo from the simulator and it built fine. Saves time and doesnt Erase everything on the device

[inferusvv]

I simply quit simulator and press i after yarn start.

[yasso1am]

I keep getting this, or some other code. I tried clearing my device content and settings in the simulator and that seemed to help, but other times it didn't. One thing I made sure to change was under debug, make sure you don't have "slow animations" selected. Once I unselected this, I had no troubles. Hopefully this helps others.