iOS Simulator won't work with Xcode 7.3.1 after install macOS and Xcode 8

Question

After install macOS Sierra + Xcode 8 beta

My Xcode 7.3.1 can't run iOS simulator anymore,

How can i fixed this?

here is system logs.

Jun 15 07:46:11 Siams-MacBook-Pro com.apple.xpc.launchd[1] (com.apple.CoreSimulator.CoreSimulatorService[2246]): Service exited due to signal: Killed: 9 sent by com.apple.CoreSimulator.CoreSimu[2246]
Jun 15 07:46:12 Siams-MacBook-Pro com.apple.CoreSimulator.CoreSimulatorService[2748]: com.apple.CoreSimulator.CoreSimulatorService 209.19 starting.
Jun 15 07:46:12 Siams-MacBook-Pro com.apple.CoreSimulator.CoreSimulatorService[2748]: Default device D340C405-CF9F-482C-82CE-ADE8A2399529 is no longer in the set, and an alternative could not be found.  iPhone / Watch pairings may not be correct.
Jun 15 07:46:12 Siams-MacBook-Pro com.apple.CoreSimulator.CoreSimulatorService[2748]: Default device C3CBAFAD-D139-49CE-9EF1-E2437A2349A7 is no longer in the set, and an alternative could not be found.  iPhone / Watch pairings may not be correct.
Jun 15 07:46:12 Siams-MacBook-Pro com.apple.CoreSimulator.CoreSimulatorService[2748]: Default device 0916CCBC-1DAA-4CA4-8DCA-FFD87C8941E0 is no longer in the set, and an alternative could not be found.  iPhone / Watch pairings may not be correct.
Jun 15 07:46:12 Siams-MacBook-Pro com.apple.CoreSimulator.CoreSimulatorService[2748]: Default device 9CC780B5-3034-4083-B52F-2354FB0A8252 is no longer in the set, and an alternative could not be found.  iPhone / Watch pairings may not be correct.

Another log

Jun 15 10:03:26 Siams-MacBook-Pro DTServiceHub[11482]: DTServiceHub[11482]: [error] 'mach_msg_send' failed: (ipc/send) invalid destination port (268435459)
Jun 15 10:03:36 Siams-MacBook-Pro Xcode[10188]: +[DTServiceHubClient localConnectionWithAuthorization:returningServerPid:]: failed to establish connection with DTServiceHub service '/Applications/Xcode.app/Contents/SharedFrameworks/DVTInstrumentsFoundation.framework/Resources/DTServiceHub'
Jun 15 10:03:36 Siams-MacBook-Pro Xcode[10188]: Xcode[10188]: [error] 'mach_msg_send' failed: (ipc/send) invalid destination port (268435459)

Check that you have installed all the relevant updates for XCode — Daniel Ormeño, Jun 15 '16 at 00:55
It worked for me to re-install XCode by downloading it from https://developer.apple.com/downloads — Peter Theill, Jun 16 '16 at 16:25
Possible duplicate of [XCode "DTAssetProviderService could not start.." error, How fix this?](http://stackoverflow.com/questions/37828996/xcode-dtassetproviderservice-could-not-start-error-how-fix-this) — Andrei Radulescu, Jun 20 '16 at 12:13

score 1 · Answer 1 · 2016-06-17T18:27:43.470

Short term solution:

Build app
The app will still install on the simulator, even with the error
Launch the app manually on the simulator
Go to Xcode
Click Debug > Attach to Process > Your App Name

This isn't recommended since you have to do it every time you want to run your app.

Long term solution (recommended):

Reinstall Xcode from the Developer Center. Doing so will clear this error, and the app will run smoothly.

score 0 · Answer 2 · answered Jun 17 '16 at 05:38

0

This should work.

Build app
The app will still install on the simulator, even with the error
Launch the app manually on the simulator
Go to Xcode
Click Debug > Attach to Process > Your App Name

answered Jun 17 '16 at 05:38

Sachin Dinesh

37
8

score 0 · Answer 3 · answered Jun 20 '16 at 12:10

0

I fixed the problem by deleting both XCode 7.3.1 and 8 Beta and reinstalling just XCode 7.3.1 from DMG.

answered Jun 20 '16 at 12:10

Andrei Radulescu

1,989
1
17
29

iOS Simulator won't work with Xcode 7.3.1 after install macOS and Xcode 8

3 Answers3