Unable to boot device because it cannot be located on disk

Question

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.

user_1677041 · Answer

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!

user_2875262 · Answer

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.

user_11652835 · Answer

Just run this command in terminal:

xcrun simctl shutdown all && xcrun simctl erase all

user_17209284 · Answer

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

Unable to boot device because it cannot be located on disk

6 Answers