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.
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
My app has started failing on devices seemingly out of the blue. When debugging it just hangs and sits there. Doesn't crash. I've found the following errors in the device log:
Error (0) / kernel(Sandbox): TUE.myiOSApp(629) System Policy: MAP_JIT requires the dynamic-codesigning entitlement
Error (222) / DTServiceHub(FrontBoardServices): [FBSSystemService][0x658f] Sending request to open "com.MyAppName”
Error (589) / SpringBoard(FrontBoard): [com.MyAppName] Provision violated for watchdog scene-create: <FBSProcessResourceProvision: 0x1c54fa400; allowance: <; FBSProcessResourceAllowance; type: realTime; timeValue: 18.57s>; violated: YES>
Error (589) / SpringBoard(KeyboardArbiter): [<_UIKeyboardArbiterHandle: 0x1c4115720; PID 631: com.MyAppName <(null)>; hosting PIDs {(
Error (589) / SpringBoard(KeyboardArbiter): -[_UIKeyboardArbiter runOperations:onHandler:]_block_invoke Failed to access <_UIKeyboardArbiterHandle: 0x1c4115720; PID 631: com.MyAppName <(null)>; hosting PIDs {(
I noticed another line that mentioned the process wasn't killed by the OS because it was being debugged.
This started happening right after I added a new device to the developer profile at the Apple Developer portal. I redownloaded the profile and installed it in xCode and in Visual Studio for Mac. The first time I ran the app on the new device, it ran successfully and I could debug. After that it started freezing. It also freezes on the old device I had been debugging successfully on just moments prior.
I've tried cleaning the solution, deleting all bin/obj folders. Restarting the device. Rebooting my Mac, etc.. nothing works.
I've dug around a little bit regarding the MAP_JIT error, however, the only answers I've found is to ensure Xcode is up to date. I'm on Xcode 11.3.1 and the command line tools are installed.
I updated to the latest version of Visual Studio for Mac which did not solve the issue
Any ideas?
Thanks!
Sean
For the past months I have not been able to debug macOS or iOS apps through Xcode. What happens is the following:
Build and run app from Xcode.
Xcode says app is running, but no app has appeared and no debug output from app either.
Kill the process lldb-rpc-server.
App appears and runs as normal, but Xcode is no longer debugging.
Start a new debugging session by attaching it to the app's process.
App freezes again, until lldb-rpc-server is killed.
This OpenRadar has the same description.
I have tried re-installing Xcode (including command-line tools), but it didn't help. Any ideas?
Xcode: Version 9.3.1 (9E501)
MacOS: 10.13.4 (17E199)
The cause of this was that I had installed a GDB/LLDB-extension called Voltron. I was unaware that the installation also created/modified the .lldbinit in the home folder. Removing this file fixed the issue. See also this issue for Voltron.
Got some very good help from Apple.
I had received this warning msg when device was locked and I was running app on device, so when device is unlocked this warning goes
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.
So I upgraded to Xcode 7.3.1 and now my Xcode will build, and deploy my apps (yes every app, even a brand new blank one) to the simulator but the app never launches on the simulator and the debugger never attaches, Xcode just hangs and has to be force quit. I've completely wiped out Xcode and all simulators and re-installed to no avail. I've scoured Stack Overflow and Google trying every piece of advice and still no luck. Anyone anywhere have any idea how to solve this issue? If I downgrade to 7.2.1 I'm able to debug in the simulator just fine.
Let me know if you need more information.
My Apps run just fine on the simulator, and if I try to attach the debugger to a running app it wont and Xcode hangs in the attempt, when attempting to attach this way at least Xcode doesn't have to be force quit.
FYI, I can debug on a device this is only a simulator issue.
I had this same issue, and tried fixing my projects and reinstalled Xcode twice before I was able to get Simulator to crash and give me an error report that called out Cylance. Luckily I have access to administer our Cylance portal, so I was able to work through the issue to narrow down the problem.
Symptoms:
When running an app from Xcode, the Simulator launches but the application does not launch within the Simulator
Trying to stop the application from within Xcode does not work, and generates no messages
Trying to re-run the application from within Xcode generates the following message: ‘An instance of “APPLICATION NAME” is already running. Choose “Stop” to terminate and launch a new instance.’ But pressing Stop does nothing.
Xcode will not quit, and eventually the user must Force Quit to exit Xcode
Within the OS X console, the following messages are displayed:
6/3/16 7:35:38.000 PM kernel[0]: AMFI: com.apple.dt.ins(pid 2239) - [deny-mmap] main process is a platform binary, but mapped executable file is not: /Library/Application Support/Cylance/Desktop/CyMemDef.dylib
6/3/16 7:35:38.000 PM kernel[0]: AMFI: com.apple.dt.ins(pid 2239) - [deny-mmap] mapped file has team identifier XXXX: /Library/Application Support/Cylance/Desktop/CyMemDef.dylib
Resolution:
The problem is caused by Memory Protection being turned on within the policy assigned to the Mac within the Cylance portal.
To resolve the issue, place the Mac into a zone/policy that does not have Memory Protection turned on. Auto Quarantine and Protection Settings can be left on.
During my testing, I was not able to come up with a list of exclusions that allowed me to leave Memory Protection on, so I ended up disabling it completely.