I have an app which I deploy to a physical device. The build succeeds and the App gets installed. But right after the launch image I get the error failed to get the task for process 2284.
When I quit XCode and launch the application manually on the device it runs without problems.
The XCode console does not give me much valuable information (See Gist)
This gist shows what the console on the device recorded.
I figured out, that the problem occurs when I am debugging with a Distribution profile. When I create a non-Distribution provisioning profile for the App I can debug again.
I got this a few times and after rebooting the iPhone (and maybe your Mac as well) everything worked like before the trouble started.
Related
I am trying to run a Xamarin.Forms app on my iPad and getting the following error:
Launch failed. The app 'AppIOS' could not be launched on 'My iPad'. Error: error MT1006: Could not install the application '/Users/mycompany/Library/Caches/Xamarin/mtbs/builds/AppIOS/someguid/bin/iPhone/Debug/my.app' on the device 'My iPad': EOF Error (error: 0xe800000e).. Please check the logs for more details.
This app has previously ran fine on the same device. The iOS build and deployment process seems very unstable so it often takes multiple attempts so I'm used to having to restart Visual Studio, the Mac it builds on and the iPad and generally wasting a whole lot of time. I have restarted everything involved here multiple times but this error persists. I have checked the device logs and there are no related messages or even any messages at the appropriate times.
I'm using Visual Studio 2017 (15.9.4), Xamarin.iOS and Xamarin.Mac SDK (12.2.1.12), building on a Mac Mini running macOS Mojave and XCode 10.1, deploying to an iPad Air (A1474) running iOS 12.1.1. As far as I'm aware there have been no updates to any of these since I last had it working. The UWP version of the app runs fine.
I can find a lot of MT1006 issues but none with EOF Error (error: 0xe800000e) and I can find no information about this specific error at all. Can anyone enlighten me on what this means?
Sounds overly simple, but I just had this issue and I solved it by restarting the iOS device and redeploying it. Specifically, I was deploying to an iPod 6th Gen and I held the power and home buttons until the screen turned black, this is more of a hard restart. Then let the device reboot and try deploying again.
NOTE: Don't hold the power and home buttons too long, because if you do, the iPod will go into a factory reset restart.
Try pulling up the device in Xcodes' devices tab. I did and realized the device had an error within the tab. I then disabled the "Connect via network" button, then things started to work properly.
I am agree, Xamarin build environment on iOS part is very buggy.
In any case of unknown error in such config: VS<->MAC<->iOS Device try these steps:
Try to switch Off and On Mac wifi.
Reconnect VS to Macbook and Macbook to IPhone.
Delete bin and obj folders on Macbook
Check your PList and Entitlements file(as example wrong aps-environment setting can cause installing errors)
Check your sign project settings
5a. Check your provisoning profile term
unistall application from ios
rebuild and run project again
I'll appent new lines in case i'll remember something else.
What you described happened to me and solved by 1,2,7
I'm building an iOS app for which I have Testflight set up, but now I'm running into an interesting issue where I can't properly launch the app from Xcode anymore since I registered my device to test the app through Testflight.
When I try to launch the app from Xcode, it will build fine and even launch it on my phone. However, there will be no output in the console, and a few seconds later the app will crash on my phone and I get the following error message popup in Xcode:
process launch failed: failed to get the task for process 484
If I delete the app from my phone before trying to launch from Xcode, the same thing will happen and the Testflight orange dot will still show up next to the app name on the home screen.
I have tried to change the app's version and build number, but that had no effect. I have not yet tried to unregister my device to test the app through Testflight because I would like to find a good way that facilitates both.
One way I have found to circumvent this problem is create a different app target and run the app with that which seems to work -- but I'm wondering if there is an actual solution to this problem or a better way to work around it.
Thanks in advance.
Turns out Max was on the right track - if I manually specify a non-distribution provisioning profile it will work properly by overriding the Testflight version of the app (the orange dot disappears). Not sure why "automatic" wasn't doing that for me. Thank you!
No app can run in my simulator, although building is good.
Error messsage is below:
Unable to run app in Simulator
An error was encountered while running (Domain = NSPOSIXErrorDomain, Code = 3)
In my case, I tried to run the app on a iPhone 6 simulator when I got this error. Quitted the simulator only and re-ran the app on iPhone 5s (8.1) - it worked fine.
After a while I changed the target back to iPhone 6 (without quitting it), and ran the app against it - no error shown.
As mentioned in the Xcode 6.1 Release Notes and in my sticky post in the Apple Developer Forums for the iOS Simulator, this is a known bug in iOS.
Upon installation of an app, SpringBoard will SIGKILL that app's
process in order to force a relaunch of the app with the new
executable. The problem is that there is a race condition whereby
SpringBoard may accidentally SIGKILL a new process that we just
launched rather than the old process. Which of the various error
messages you get depends on exactly when in the launch process the
SIGKILL was delivered. Normally, this shouldn't happen, so the advise
is to just try again (sorry =/). If you find that this happes to you
all the time or more frequently than you can tollerate, we are
incredibly sorry. We are aware that systems with slower disk I/O will
see this happen more frequently than faster systems, so if you are
using an NFS home directory, you may want to create a local directory
for your simulator data and setup a simlink to it from
~/Library/Developer/CoreSimulator
By Quitting the Simulator and Run the application worked for me.
For me , just Reset Content and setting in your simulator
Restart Mac can solve the problem for me.
This error is less severe than "Domain = DTiPhoneSimulatorErrorDomain, Code = 2" error that I had when I switched to Xcode 6.
For this one, I just reset and cleared contents on my Simulator...quit. Rebuilt and ran my app...and it works.
Every time this has happened to me (as of this writing, still happening on Xcode 6.1) I do not need to restart my mac to fix it. Instead I only had to restart the simulator. I exit the simulator by right-clicking on its icon in the tray and selecting the option to Quit. The I re-run my app and the simulator starts from scratch and runs my app with no error. Much quicker than re-starting the mac.
Well, I had the same error popping up, but since I force quitted the simulator then ran the project again I got it fixed and running fine. Hope that helps you :)
If this error occurs with ionic framework, make sure you have an app id given in your config.xml
This is a generic error which says that it is unable to launch the app. The real error is in the log file. Go to the Simulator menu, Debug / Open System Log. Then press Reveal button to open the folder with actual Simulator logs. In my case it was CoreSimulator.log.
Here you will find the real error. My error was Could not register service com.apple.gputools.agent.producer.sim .
After a lot to struggle and trying all suggestions for half a day, I just went to simulator menu and chose File / GPU Selection / Use External GPU when available. That's it.
please download new xcode_6 beta 4. your project will work in simulator. As i have tested as well.
Sometimes the beta version of XCode is wrongly configured to use the command line tools from the previous xcode version.
This solution should fix the issue for you : https://stackoverflow.com/a/25415781/512504
I have an iOS app that I've had to rename (kept the bundle id the same, but renamed practically everything else), and now I can't get it to run on my development iPod during the initial launch from Xcode. I'm worried that this means existing users will have a broken app if I submit it now.
Here's the process:
No app on device.
Clean
Build
Run on target device.
Runs as expected
Current app on device, downloaded from app store.
Clean
Build
Run on target device.
Fails with error: "Could not launch app name. Failed to get the task for process pid"
Attempting to launch to the app from the device shows the app-launch ("zoom") animation, but immediately closes.
But if I hit run in Xcode again (without cleaning or building) to cause a redownload of the app files, the app will run as expected on the iPod.
My question, then: Because the renamed app runs with a clean install, and runs after a "double launch" with the old app, can I expect this to work as an update? Or does the failed launch with the old app on the device mean the existing installs will just crash all the time? If so, any tips on how to fix this?
(Previous questions indicate that cleaning or deleting the DerivedData folder can fix the issue. I have tried both of these steps, but they haven't resolved anything.)
Attempts to debug an iOS app that has been signed with a Distribution provisioning key will fail with the "Could not launch app name. Failed to get the task for process pid" error because the app doesn't have the get-task-allow entitlement. It sounds like on first run either Xcode has not installed your rebuilt app over the downloaded app or Xcode has signed the app with the wrong key.
It's likely that your app will work correctly as an update.
(I'm sorry for adding this as an answer, but I don't have enough reputation to add a comment to your question.)
I have a project I can successfully build/install using developer/debug to a device or simulator.
When I make an ad hoc build i can build-run onto the simulator, but not onto the device.
I'm trying to perform a direct install because the ad hoc installed app is crashing (nil added to array) where the debug version is not.
I also have tried to attach to the running ad hoc installed app. The app will run indefinitely (but crash if i perform a particular use case.) But if I attempt to attach to the running app, it will crash.
It happens to be a Box2d/Cocos2d application - but i don't have any reason to think they are the cause. Xcode 4.3.2, iPhone4 iOS 5.1
the message when build-and-run is attempted:
error: failed to launch '/Users/bshirley/Library/Developer/Xcode/DerivedData/foo-bar-evrbckppmbsspqhezhleaxkmymxn/Build/Products/Adhoc-iphoneos/foo-bar.app/foo-bar' -- failed to get the task for process 6892
Anyone have some insight into the problem or tracking it down?
Edit, I thought I'd add some key words so searches might be more likely to find:
One issue with diagnosing the post-mortem crash was that the stack trace was not symbolized in the Device Logs of the Organizer in Xcode. That left me with 6+ deep stack trace w/i my code and no real reason to determine where it actually was.
If it is a release build, the app will (in a default setup) have a flag preventing outside processes from hooking into it (for security reasons). This includes the debugger. If you try, you will get the exact error message you indicate.
EDIT Sorry, small error. A release build alone will not cause this. A build with an adhoc certificate will cause this, because it is meant for final install on a device (not debugging).
If borrrden is correct (and it seems reasonable that he is, connecting one app to a signed running app would be a security issue), I can't actively debug the adhoc app.
The most useful thing i found for tracking down this issue, is Build Settings -> Symbols Hidden by Default - this value is only NO for debug. Setting it for NO on adhoc allowed me to see the entire stack trace when inspecting the Device Logs in the Xcode Organizer.
That led me to the particular method that was invoking the crash causing issue. Which led to the question why wasn't it crashing in the debug build. Didn't have time to diagnose that, just fix the problem.