Unable to boot device because it cannot be located on disk

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The device's data is no longer present at /Users/[user name]/Library/Developer/CoreSimulator/Devices/D651BCC7-29FD-4B91-82F6-E255E856EA2F/data.

I uninstalled xcode 9 and installed xcode 9.1, but when run project, following message was shown:

Unable to boot device because it cannot be located on disk. The device's data is no longer present at /Users/[user name]/Library/Developer/CoreSimulator/Devices/D651BCC7-29FD-4B91-82F6-E255E856EA2F/data.

I found "Developer" folder, but cannot find "CoreSimulator" folder.

Cavefish answered 23/11, 2017 at 0:24 Comment(0)

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I was able to resolve the issue running xcrun simctl erase all in Terminal.

Darb answered 29/12, 2017 at 10:30 Comment(8)

Accept this answer. – Unrobe 26/4, 2018 at 13:19

xcrun: error: unable to find utility "simctl", not a developer tool or in PATH – Sheya 10/6, 2019 at 14:26

you need to first run -> sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService – Housecarl 26/11, 2019 at 21:26

Before run xcrun simctl erase all in Terminal, Quit Xcode.app, Simulator.app. Otherwise, run script will fail. – Catalyze 22/4, 2020 at 1:3

God bless your soul :-) – Staphyloplasty 6/6, 2021 at 22:46

@Milan Jansen ... save everyone and accept this answer :) – Jeanajeanbaptiste 23/9, 2021 at 13:3

Oh man, that was scary! Yes, this answer needs to be accepted. – Piquet 17/5, 2022 at 20:26

Work like a charm in 2023 – Abutting 5/4, 2023 at 15:23

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Quit Xcode.app, Simulator.app, etc

Try the following commands in Terminal

sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService    
rm -rf ~/Library/*/CoreSimulator

Ragland answered 29/11, 2017 at 13:32 Comment(6)

still same error message, how do I add the simulators back? – Ship 15/12, 2017 at 18:50

I needed to run the killall command before I could use xcrun simctl erase all from above – Hod 28/7, 2018 at 4:3

YESSSSSSSSSS, finally! Thank you so much! – Tamis 7/7, 2019 at 22:30

Thanks a lot!! Ran all the above and then ran xcrun simctl erase all and it started to work. – Amylene 1/8, 2019 at 15:54

I tried the above and received errors in the terminal related to permissions even though I rand with sudo. I made sure I quite both Xcode and the simulator. I did a reboot and then it worked. – Friendship 14/11, 2019 at 12:54

I think the cleanest way to stop a service is with launchctl, i.e. "launchctl stop com.apple.CoreSimulator.CoreSimulatorService" – Beguin 18/11, 2019 at 13:8

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Go to Xcode menu Window-> Devices and Simulators -> Simulators tab, right-click the bad simulator and choose Delete from the menu list, then add it back from the left bottom entry again, it works!

Debbydebee answered 8/5, 2019 at 2:9 Comment(2)

This worked for me thanks – Mohandis 10/1, 2022 at 21:35

This fixed it for me.. – Robinette 15/5, 2022 at 9:56

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Click on the simulators dropdown at the top of Xcode, and select Download Simulators....

From here, you can select which versions you want to download and for what devices.

Kittiekittiwake answered 31/1, 2018 at 0:32 Comment(1)

i dont' have a Download option – Farra 7/1, 2022 at 1:20

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Just run this command in terminal:

xcrun simctl shutdown all && xcrun simctl erase all

Handle answered 24/1, 2022 at 9:35 Comment(0)

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I had the same issue.

It worked for me by erasing the device which your Mac does not found.

xcrun simctl erase AKADKJ-

Here is also a link where a found a good explanation.

https://medium.com/xcblog/simctl-control-ios-simulators-from-command-line-78b9006a20dc

Exhibitionist answered 9/3, 2022 at 22:7 Comment(0)

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