This suddenly appears these days. I use Xcode 9.2.
Every time I use command+R to run my APP the explorer will be launched and open fabric website. At this time the Fabric App could not be open. It was crash in the background even it was not opened. I must close Xcode. I tried open Fabric App first then open Xcode. After few hours this happens again, every time use command+R would open fabric website. At that time the Fabric App was freeze. The only way to close it was force quit.
Does anyone have the same problem?
More information. It's often happens after long time using Xcode, maybe more than 5 hours. It maybe have some issue with Interface Builder. I use #IBDesinable classes in storyboard and there are more than 10 xibs in this storyboard. It has more probability that Xcode build this storyboard after long time working occurs Fabric App crash.
I use Xcode 9.2 and macOS 10.12.6
Related
App submitted to store one year ago. It worked fine up to iOS 11 but in iOS 12 the app is immediately crashing even without launching. I tried to debug the issue but I couldn't, because before didFinishLaunchingWithOptions, the app crashes and I did not find any error logs.
It is happening in iOS 12 only, working fine with below iOS 12.
How can I debug this issue?
Have you correctly installed your XCode Update? Sometimes you have to install cli
(that is needed e.g. by mtouch if XCode links your assemblies) or other components by hand.
Are you're credentials (certificate) still valid? or otherwise asked: did you build another app since this happens?
Have you set a breakpoint right in you app delegate and step throw until the app crashes? Can you show logs? If you don't have some, than create them by yourself. Do exception handling and log the exceptions. Or otherwise said: More information please.
I took a running app that was built under XCode7 and since I'm going to make some updates to it, did a build with XCode 8. After the first build (it was successful), I got a series of "suggestions" that XCode 8 wanted to automatically make for the app. Since I've never had problems doing that, I clicked OK and did another build under XCode 8. Now my app won't link properly! (It's happening on two separate apps, both using Crashlytics and Ensembles)
How can I backout the changes that were automatically made to the app by XCode 8?
If you are using source control with your project, you can go back to the last committed state of your .xcodeproj file. Maybe this is not too far away from the state right before you switched to Xcode 8.
Xcode cannot launch apps on the simulated device “iPhone 6”, as it is currently running an app on “iPhone 4s”. Only one simulated device may be used at a time
This means one of two things:
You have another project window open, and that project is debugging an app using the iPhone 4s simulator;
XCode has gotten confused and thinks you are still debugging something in the simulator, even though you are not. This happens to me pretty often, and I think it's a bug in XCode, in the way it interacts with the simulator.
For #1, go to the other project window(s) and click Stop button to stop debugging.
For #2, quit XCode and start it up again.
I am using XCode 5, with an iPhone 5s as the dev device. Every other time I run the app I get a pop that says "Could not launch [app name] \n busy". My iPhone 5s then appears to crash and the only way it will respond is if I hold the home and lock button until it resets.
The application is a single view application, the only thing I have done is added the Parse.framework from here and used
[Parse setApplicationID:appID clientKey:clientKey];
[PFAnalytics trackAppOpenedWithLaunchOptions:launchOptions];
In applicationDidFinishLaunchingWithOptions, along with some UI that isn't hooked up to anything.
I'm not sure if this has to do with Parse or possibly the App settings.
So to be clear, the behavior is:
Fresh reset > Build and Run application on iPhone 5s > application runs fine > Build and Run application on iPhone 5s > application appears to launch but screen remains black and iPhone is no longer responsive except the screen will turn off when the lock button is pressed (but not back on) > Build and Run application on iPhone 5s > XCode says "could not launch app - busy" > hard reset iPhone
When I run this on the 64-bit simulator it works fine.
Edit 1:
I have tested with multiple applications now that we know work on multiple other devices (iPhone 5, iPhone 4, iPhone 4s) and the simulators. I don't have another iPhone 5s so it is hard to compare exactly but everything crashes my 5s..
My device was completely stuck with black screen. "To fix you have to hard reboot, holding the power and home button until the phone reboots - doesn't lose any of the data you have on your phone (a concern the first time I did it)." as stated here:
http://blog.paulhadfield.net/2014/01/iphone-hangs-when-running-from-xcode.html
For iPhone7 there is a different approach:
Press and hold down the power button located on the right side of
the iPhone 7.
While holding down the power button, press and hold
down the Volume Down button on the left side of the iPhone 7.
http://www.hongkiat.com/blog/force-reset-iphone7-7plus/
You were using your phone when you ran the app. Make sure you don't use your phone after you press build and run, otherwise it will be "busy"
Which Xcode version do you use? Same issue with Xcode 5.0.1 + iPhone 5S (iOS 7.0.4). It crashed my iPhone 5S even by the simple application created by Xcode's default project template.
It seems this issue has been fixed in Xcode 5.0.2. Xcode 5.0.2 works fine for me by now.
I've got the same problem for several times. It seems that this problem always happens when iCloud or other background App is running & the App I was debug is already in running mode.
My suggestion is: Avoid any background App running when debug and Make sure the App debugging is fully killed before restart a debug.
It is obvious a bug in iOS 7 + Xcode 5.
I had the same issue and upgrading to Xcode 5.0.2 resolved it.
I've got an Xcode project that I've been working on over the past few weeks.
I just made some changes to an embedded framework that I'm working on (recompiled, to be specific) now, however, I am unable to launch the application in the simulator.
The app hangs on "Attaching to [app name]," if I have a debugger on. If I don't have a debugger on, Xcode just says the app has finished running.
There is no icon installed on the device.
Here's what I've done so far:
Restarted
Reset simulator
Clean and build
Deleted derrived data
I cannot install onto a device either, but then I get an error:
Error launching remote program: No such file or directory (/Users/peter/Library/Developer/Xcode/DerivedData/x-gtwuuwmavjonyrcxjmpcletdpyjw/Build/Products/Debug-iphoneos/x.app/x).
Oddly enough, what worked was installing another app in the sim (just launched another project and ran it) and then launching the other app in the sim.
I'm not sure what the issue was, but I tried it on two computers and it was hanging on each, so it was related to the project rather than the simulator. There's an issue to think about...