No Simulators in Xcode 12.01

Question

Created Oct ’20

Replies 1

Boosts 0

Participants 2

Hi all,
I've been searching around online all morning and can't find a solution to my problem. I can't get any simulators to start for iOS. I'm just learning but this seems like basic step to get hung up on. I keep getting this error when trying to add a sim:
"Could not create iPhone XR, unable to access default device set".

I also get this error in xcrun simctl list:
xcrun simctl list

2020-10-20 08:31:56.429 simctl[1427:54587] Error Domain=com.apple.CoreSimulator.SimError Code=400 "Unable to determine SimDeviceSet, setpath=(null)" UserInfo={NSLocalizedDescription=Unable to determine SimDeviceSet, setpath=(null), NSUnderlyingError=0x7fa699c19130 {Error Domain=NSPOSIXErrorDomain Code=12 "Cannot allocate memory" UserInfo={NSLocalizedFailureReason=Allocation or initialization failed., NSLocalizedDescription=Failed to initialize simulator device set.}}}

Unable to locate device set: Error Domain=com.apple.CoreSimulator.SimError Code=400 "Failed to initialize simulator device set." UserInfo={NSLocalizedFailureReason=Failed to subscribe to notifications from CoreSimulatorService., NSLocalizedDescription=Failed to initialize simulator device set., NSUnderlyingError=0x7fa699c1db60 {Error Domain=com.apple.CoreSimulator.SimError Code=400 "Unable to determine SimDeviceSet, setpath=(null)" UserInfo={NSLocalizedDescription=Unable to determine SimDeviceSet, setpath=(null), NSUnderlyingError=0x7fa699c19130 {Error Domain=NSPOSIXErrorDomain Code=12 "Cannot allocate memory" UserInfo={NSLocalizedFailureReason=Allocation or initialization failed., NSLocalizedDescription=Failed to initialize simulator device set.}}}}}

Boost

Answer 1

sigfpe OP

Nov ’20

I encountered the same issues and, in my case, the problem turned out to be that I had relocated ~/Library/Developer to an external volume. I'm assuming it is some kind of permission issue, but did not investigate further since removing the symbolic link fixed the problem.

0