When trying to start an app in debug mode from Visual Studio on a real iOS 10 device, VS will display "Launching app", and then immediately follow up with an "App terminated" message.
No detailed error can be found in the device logs.
I have tried several things, including deleting caches, restarting, reconnecting, rebooting devices and Mac Agent.
I have followed this bug issue to clear caches (https://bugzilla.xamarin.com/show_bug.cgi?id=43239) but with no success.
Also I made sure that all entitlements are correctly described.
After some investigation it turns out that XCode was displaying a tiny message, that this version of XCode was incompatible with the device.
This message is not carried through to Visual Studio.
Update XCode!
Second, possible solution from the bug tracker (https://bugzilla.xamarin.com/show_bug.cgi?id=43239):
Delete contents of
%AppData%\Local\Xamarin\MonoTouch\ on windows machine
$HOME/Library/Caches/Xamarin/XMA on mac machine
Hope this saves somebody else some time.
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 trying to get an answer on here before uninstalling this software and developing straight on Mac after spending 4 hours trying to figure this out. I just installed all these programs on both machines (VS15/Xamarin on Windows 10, Xcode/Xamarin on iMac, both on the same network). Mac Agent is connected, I have a Developer account on XCode, a device linked to my account, everything looks fine.
When I create a basic app (I don't even add a line of code, just a blank single view app) on XCode (iMac) and launch the simulator, it works just fine. I get the view of the device etc... When I do the same on my Windows machine, I can't debug. I get the error "The app could not be launched on 'iPhone SE iOS 10.2'. An error occurred while executing MTouch."
I looked all over the place searching for a solution. I removed the Entitlements.plist file, I also checked for updates on everything (as some suggested on StackOverflow). Nothing.
So I tried an Android app to see if that works and no issue there. I get the device I pick, shows a black screen because the app is empty, as expected.
If anyone can guide me before I uninstall this whole thing and code directly on a Mac, it would be greatly appreciated. Thank you!
Restarting Visual Studio and cleaning iOS project worked for me.
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 am developing an ios app that doesn't need an internet connection. I'm using phonegap and jquery-mobile. I'd like to develop offline, but XCode gets stuck with a status saying 'Attaching to iosproj' (iosproj is my project name). After that I cannot stop the stuck task, and have to force-quit XCode. With an internet connection however, everything works just fine. Grateful for any clues.
Edit: XCode seems to install the app fine without a network, but it gets stuck before/durimg receiving the deviceready event.
Update 1: The app runs fine on the simulator with or without the n/w. It is purely the XCode-iOS simulator interaction.
Update 2: When using phonegap (Apache cordova), there's an easy work-around to work offline. Once the project has been built and installed (with a n/w), all subsequent updates to html/js/css/img can be made directly to the www directory in the simulator's Library (under your app folder, in ~/Library/Application Support/iPhone Simulator/6.0/Applications).
The Simulator itself attempts to make an Internet connection to Apple as it launches. In particular, the itunesstored process attempts to connect to ax.init.itunes.apple.com and phobos.apple.com.
[That information comes from LittleSnitch. You would be well advised to install LittleSnitch so that you can be sure of exactly what connection is being attempted here. No one - certainly no developer - should be without it.]
If you find this troublesome (that is, if the connection failure is causing you to be unable to run your app in the Simulator at all) you should file a bug report with Apple. However, I've had no difficulty with this, so perhaps this an Xcode bug. I'd suggest first updating to Xcode 4.5.2 in case it is fixed there.
I'm having trouble with the iOS simulator. I'm currently on 10.7 and was using the simulator to test my website. During the testing, I switched the iOS version via the tool bar, and the application froze and quit. Upon restarting, I get the following error message, with a finder window, inviting me to choose an application:
"ios Simulator Could Not Find The Application To Simulate"
Here's what I've tried to fix the issue:
1: Attempt to identify the application it needs, but the only thing i could see to open was a printer app and the ios simulator app, which just results in a "only one iOS simulator can run at a time" error message.
2: Restart the Mac.
3: Download the new Xcode tools from the app store.
4: Restart again.
None of this has helped, and I'm really stuck without it at the moment. If anyone knows how to resolve the problem, I would be grateful to hear any suggestions. Thanks.
Give this a shot.
Open up a new shell, and shoot of this command: sudo <Xcode>/Library/uninstall-devtools --mode=all (assuming thats the location of the instal).
Then run the Xcode installer you got from the app store.
This removes all the plist files that were also installed with xcode, which aren't removed when you simply reinstall. This is as close as you can come to a complete xcode refresh without reinstalling your OS.
Here's an alternative solution that worked for me... the answer selected here did not. I created a blank, "hello world" project and simply ran it. When you run the app, it sends the app to the simulator and voila! iOS Simulator has an app to simulate. From that point forward, you should be able to open the iOS Simulator without a problem.
After a while longer trying various things, it seems like I may have fixed it.
When asking for an application to open, I opened Xcode, and (weirdly) that opened up and left the testing shell visible, with the tool bar intact. I then selected the current version from the device options and hit the home button, and suddenly everything appeared.
Weird thing to have suddenly happened, but there you go.
I still can't test in iOS 3, so that's a bit of a problem, but not a disaster either!