unable to contact local DTServiceHub to bless simulator connection

I upgraded to macOS Sierra and when i try to run an iOS app in the 9.3 Simulator from Xcode 7.3, i get the following error message:

DTAssetProviderService could not start DTXConnection with Simulator 'iPhone 6s'. Check the system log for errors.


iPhoneSimulator: Unable to connect to "com.apple.instruments.deviceservice.lockdown" (Error Domain=DTServiceHubClient Code=-11 "unable to contact local DTServiceHub to bless simulator connection" UserInfo={NSLocalizedDescription=unable to contact local DTServiceHub to bless simulator connection})


Is there a known work around for this issue? I restarted Simulator, Xcode and OS but the error remains.

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This is an issue that has been reported and discussed elsewhere in these forums. You can workaround this Sierra Beta issue by installing Xcode 7.3.1 using the drag-and-drop installer from http://developer.apple.com rather than downloading from Mac App Store.

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jeremyhu
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Where can i find the drag-and-drop installer? the link here sends me to the appstore http://developer.apple.com/download/

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smt2ios
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