xcode 9 simulator error unable to boot the simulator launchd failed to respond mac os sierra

unable to boot the simulator. domain: nsposixerrordomain code: 60
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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.


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

unable to boot the simulator launc…, After I updated to Mac OS Catalina I'm no more able to run the simulator. I always get this: "Unable to boot the Simulator - launchd failed to respond". I'm running I can't update to Xcode 11 (anyway my collegue installed Xcode 11 and he's getting the same error too). I already try these: 5.9k views. Asked 9 months ago by. Note: I Assume you are on OSX Yosemite 10.10.3 or Latest Operating System & Xcode 6 or later installed. With release of Xcode 6 & later while developing & running your iOS app in iOS Simulator on your Mac you face with this bug something like this ‘Unable to boot iOS Simulator’ with blank screen. Here is how to fix it . Solution 01:


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.

  1. Check if you have an internet connection running in your mac.
  2. Restart the simulator.
  3. Restart mac if required.

Hope this will help you. Thanks

Xcode Tips - How to Reset Xcode and the iOS Simulator, Sometimes your app fails to launch because of Xcode bugs or errors. It's not always your Duration: 2:54 Posted: Aug 15, 2015 OS Version: Mac OS X 10.11 (15A178w) Report Version: 11. Anonymous UUID: EE5B5C30-CC0B-9BF2-5594-58B5C1A21D1E. Time Awake Since Boot: 1700 seconds. Crashed Thread: 0. Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000002, 0x0000000000000000. Exception Note: EXC_CORPSE_NOTIFY


Restarting Mac solved it for me.

xcode 9 simulator error unable to boot the simulat, xcode 9 simulator error unable to boot the simulator launchd failed to respond mac os sierra. I ave tried deleting contents from derived data,� Due to quirks (most likely Simulator bugs) in the Simulator launching on both Xcode 8 and 9, there is no common code to have it launch successfully on both Xcodes. Through experimenting, I have found these to be most reliable:


How to fix Xcode error 'Unable to boot iOS Simulator', With release of Xcode 6 & later while developing & running your iOS app in iOS Simulator on your Mac you face with this bug something like� On Visual Studio for Mac with all updates (Community 2017 - 7.4.1 - build 48 - all Nugets updated) and Xcode 9.3 installed, all simulators are listed properly and apps will even be deployed and run on the selected simulator.


Developer Headaches on macOS Catalina: Xcode, Homebrew , 问题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� I mean: this question about "simulator unable to boot" is a duplicate of Unable to run app in Simulator: Xcode beta 6 iOS 8 which has already 28 answers, and none of them is using xcrun. – Cœur Oct 22 '18 at 5:33


10.15 Catalina Beta Archives, Unable to Install Update. When I tried to run a tool that relies on Xcode, the Mac gave this xcrun error: xcrun: error:� This will only remove a device configuration. The question was about removing a simulator (which has devices associated to it.) To remove the simulator as a whole, the version runtime needs to be removed. Xcode will remove the devices automatically on next app start for the removed runtime. See the answer from @NimitParekh above for way to do this.