Running the app on the simulator shows: "Unable to boot the iOS simulator". I'm on Xcode 6.0.1.
I tried everything: resetting the simulator; selecting the Xcode 6.0.1 command line tools; restarting the Mac. The problem is still present.
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Please check this url. I was faced same problem. It was helped me. http://stackoverflow.com/questions/24023029/error-opening-ios-simulator-with-ios-8-beta-version-unable-to-boot-the-ios-sim – Monikanta Sep 26 '14 at 12:24
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possible duplicate of [Unable to boot iOS 8 Simulator](http://stackoverflow.com/questions/25987302/unable-to-boot-ios-8-simulator) – Jeremy Huddleston Sequoia Nov 03 '14 at 19:41
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Try this. In Xcode menu: Open Developer Tool > iOS Simulator. When it opens, use the menu to go to Hardware > Device > Manage Devices.... In that list, delete the non-working simulators and re-add them.
Also make sure that the Downloads section of Xcode preferences is up to date.
Ricardo Sanchez-Saez
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I tried this also but still it showing the same problem. When I open simulator click on Hardware > home then also it shows black screen and after some time again same message show. – Yogesh S Vankudre Sep 27 '14 at 06:40
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Do you have DYLD_INSERT_LIBRARIES set? If so, this is a dupe of:
Unable to boot iOS 8 Simulator
Check /etc/launchd.conf
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Jeremy Huddleston Sequoia
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As stated in the answer above, "Check /etc/launchd.conf" – Jeremy Huddleston Sequoia Sep 29 '14 at 15:35
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If there is no file /etc/launchd.conf, is it safe to assume that the flag is not set? – ToolmakerSteve Oct 18 '16 at 16:17
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No. That's just the main place people set it. Newer versions of the iOS Simulator Runtime ignore invalid DYLD_INSERT_LIBRARIES, so if you're seeing an issue on newer builds, it's not DYLD_INSERT_LIBRARIES. – Jeremy Huddleston Sequoia Oct 19 '16 at 17:50