Code=53 "Simulator verification failed."

Question

Since I updated to XCode 6.2, when I try to run

xcodebuild -project Demo.xcworkspace -scheme Demo clean build test

I'm always getting:

iPhoneSimulator: SimVerifier returned: Error Domain=NSPOSIXErrorDomain Code=53 
"Simulator verification failed." UserInfo=0x7f82b9e091a0 
{
    NSLocalizedFailureReason=A connection to the simulator verification service could
    not be established., 

    NSLocalizedRecoverySuggestion=Ensure that Xcode.app is installed on a volume with 
    ownership enabled., 

    NSLocalizedDescription=Simulator verification failed.
}

Has anyone encountered this?

Answer 1

Rather than simply delete the /Library/Developer directory, I updated the permissions on all instances of dyld_sim to match those that Jeremy from Apple mentions in this post. First, find all instances of this on your machine with the following command:

sudo find / -name dyld_sim

Then, check the permissions for each one:

ls -l "<file location\file name>"

If you don't see:

-rwxr-xr-x  1 root  wheel  

Then you will need to modify the permissions to match properly. In my case, the group ownership was wrong and listed as admin instead of wheel. Using

sudo chown :wheel "<file location\file name>"

to change the group ownership on each of the incorrect instances corrected the issue. If the issue is the flags and not ownership you will need to use chmod instead.