"The operation couldn't be completed. Invalid argument." while adding a simulator on xcode 10.2.1 (10E1001)

"The operation couldn't be completed. Invalid argument." while adding a simulator on xcode 10.2.1 (10E1001), MacOS Mojave 10.14.5.


I see the above when I try to add a simulator. Tried re-installing xcode too. Nothing seems to work.

Has anyone faced this issue before?

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neehal22
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Facing the same issue with Xcode 11 GM 2 while trying to create a simulator for iOS 12.1.

Posted by
xperseguers
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sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService

should help

Posted by
uniqby
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Thank you very much! This fixed my issue.

Posted by
MiguelRC86
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Thanks, this fixed my issue.

Posted by
afiq.razer
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that fixed my issue !
Posted by
csabanemesb
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