I am facing a problem. When I try to run the simulator iPhone 5s (iOS 7.1) a message pops up saying "
Unable to boot the iOS Simulator
". Though if I run the iPhone 5 or iPhone 4s simulators (iOS 7.1) or iPhone 5s (iOS 8.3/8.4) all work fine.
I am running OS X Yosemite (10.10.5), Xcode 6.4 and iOS simulator iPhone 5s (iOS 7.1).
Update:
CoreSimulator.log:
Error Domain=NSPOSIXErrorDomain Code=60 "Unable to boot the iOS Simulator." UserInfo=0x7ffe8d94f990 {NSLocalizedDescription=Unable to boot the iOS Simulator., NSLocalizedFailureReason=launchd failed to respond.}
DiagnosticReports:
Crashed Thread: 0 Configuration error: Could not bind system logger socket.
Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Thank you.
For people having the "Unable to boot the iOS Simulator" issue while running Xcode 6.x under OS X 10.11 El Capitan, be warned that there is no effective solution as the iOS 7 simulator is functionally incompatible with El Cap.
See the following Apple Developer forum thread and read the response by jeremyhu:
https://forums.developer.apple.com/thread/5612
"This is a specific incompatibility of the iOS 7.1 libxpc being too old to satisfy the needs of the host's libsystem_stats.dylib."
Posting this because I spent hours pounding my head into the wall trying to "fix" an unfixable problem.
The "Unable to boot the iOS Simulator" error message usually appears as a result of CoreSimulator failing to kick off launchd_sim to boot the simulated device.
In your case, the issue is that launchd_sim is crashing on launch because it can't bind to the syslog socket, which is located at /private/tmp/com.apple.CoreSimulator.SimDevice.[DEVICE UDID].launchd_sim/syslogso
Try deleting /private/tmp/com.apple.CoreSimulator.SimDevice.*:
sudo rm -rf /private/tmp/com.apple.CoreSimulator.SimDevice.*
This issue "Unable to Boot the iOS Simulator" exists because of System Integrity Protection in El Cap.
Simulator is definitely compatible with El Capitan if you turn of SIP.
Here is how to do it:
How to turn off System Integrity Protection in El Capitan:
Click the menu.
Select Restart...
Hold down command-R to boot into the Recovery System.
Click the Utilities MENU and select Terminal.
Type csrutil disable and press return.
Close the Terminal app.
Click the menu and select Restart....
Run iOS Simulator
Worked for me! Good Luck :)
Related
I am running XCode 14.0.1 on mac ios 12.6. When I try to run any app in any simulator I get and alert:
"Unable to boot the Simulator. Interrupted System Call."
I have followed steps described in other posts. I've gone to About this Mac > Storage > Manage > Developer and deleted XCode Cache. I've deleted and re-added simulators in XCode itself. I even re-installed XCode. Nothing works.
When I check the "Detail" button in my "Unable to Boot" alert, I also get this:
"Failed to start launchd_sim: could not bind to session, launchd_sim may have crashed or quit responding
Domain: com.apple.SimLaunchHostService.RequestError
Code: 4"
Does anyone have any clues as to what is happening?
Thanks
I just download Ios 13.7 simulator in Xcode 12.2, it is crashing without opening.
Failed to start launchd_sim: could not bind to session, launchd_sim may have crashed or quit responding
I am very new to this, please help. I search on internet also but could not found any solution. System restart / XCODE restart i have done.
This is on watchOS 4.3 beta (15T5165e) and Xcode 9.3 beta (9Q98q), but I don't think it's because of them being in beta because another WatchKit project ran on device just fine. I have tried unpairing/repairing, restarting the iPhone/Watch/macOS/Xcode (while making sure to to tap "trust this computer" on the watch) but Xcode still says "Running" in the WatchKit scheme without actually installing and running the watchOS app, eventually saying "Watch app launch timed out."
Disable WiFi on the iPhone. This helped me.
I came to this after following #Appyx advice to activate a hotspot on iPhone. Then I noticed, that in hotspot mode WiFi is automatically disabled and tried this.
I'm using Xcode 6 GM Seed (build 6A313) with iPhone 5s (Model A1530, iOS 8 build 12A365). I connect the iPhone via USB lightning cable. But in Xcode, it shows as: "iPhone 5s (unavailable)".
Further investigation: I open Xcode menu > Window > Devices, it shows the following error:
An error was encountered while enabling development on this device.
Please try rebooting and reconnecting the device. (0xE8000070)
I reboot and reconnect my iPhone 5s, the same error is shown. This device was used for development in previous Xcode 5, and shows no problem at all.
What should I do? I want to try my apps in iOS 8 device.
If you are using Xcode-beta 7.1 and want to run app on iOS 9.0 like me you will also get the same error. The solution is:
Use corresponding iOS 9.1-beta.
Use Xcode 7.0
Run on simulator.
The problem is resolved after I updated iTunes to version 11.4 via Software Updates.
The Xcode error message is misleading.
In my case, during 2 years developing, my phone has several test app with name (null). you can only see a default Xcode app icon in app list in Setting. I had tried updating Xcode, but not work. finally I delete these null name apps, then Xcode - device can connect it without warning sign. Run test app won't get the error in question. only my case. share it in case you encounter in future.
I've been developing an app on my iPhone recently and today I upgraded our iPad to iOS 8 so I could test the app on it. Xcode gave me the following error, though:
Any ideas what could be causing this error?
Try checking restrictions in your device Settings.
Recently in XCode 10.1, while attempting to run a project on a device, was presented with this same message.
In iOS 12.1.3, the device setting to allow installation of the app, is:
Settings->Screen Time->Content and Privacy Restrictions->iTunes and App Store Purchases->Installing Apps-->Allow