xcode 9 simulator error unable to boot the simulator launchd failed to respond mac os sierra
I ave tried deleting contents from derived data, restarting Xcode , Uninstall and install of xcode etc.
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In this case, launchd is crashing when trying to launch.
This could be as a result of deleting the /private/tmp folder.
To resolve this, I typed the following commands on my terminal:
sudo mkdir /private/tmp
sudo chmod 1777 /private/tmp
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2Thank You so much, man !! The only solution that worked for me. – Bilal Mustafa Oct 24 '18 at 10:50
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4I'm having the same problem with Xcode 11, but this solution did not fix it for me. Any other ideas? – aksh1t Sep 03 '19 at 14:54
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@aksh1t Deleting and adding the Simulator back and then restarting the computer fixed the issue for me. – Paramasivan Samuttiram Sep 16 '19 at 06:41
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1Removing said folder, recreating it and setting permission to 777 worked. – Stefano Mtangoo Sep 24 '19 at 06:38
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1For me, with Xcode 10.3 as well as 11.1, /private/tmp was already present, so just setting chmod 1777 worked. – archeopetrix Oct 17 '19 at 12:41
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I'm using xcode 9.2. I had the same problem. For me the tmp folder was already there. Removing and creating the folder with the given permissions solved the issue. – Mycodingproject Nov 12 '19 at 07:02
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sudo chmod 777 /private/tmp worked for me, not 1777 – Mars Zhu Nov 29 '19 at 10:17
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Surprisingly, this fixed my issue too. `sudo rm -fr /private/tmp/*` then `sudo chmod ugo+wrx /private/tmp` – ksealey May 15 '22 at 17:03
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I observed these issues sometimes when my mac is not connected to the internet. So here is a solutions list one of them may solve your problem.
- Check if you have an internet connection running in your mac.
- Restart the simulator.
- Restart mac if required.
Hope this will help you. Thanks
Shoaib Bagwan
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It worked thanks. Although i don't need to restart my mac. Just check the internet connection at your system. – Amit Thakur May 24 '20 at 05:26
