系统 iOS 更新后 React Native 应用程序在启动时崩溃

Question

I ran into this issue a while ago: I install my app in my iPhone both in debug and release and it works well. However after some time (days, weeks) it starts crashing for no apparent reason on start, right after the splash screen shows up. I suspect this happens after every iOS update.

At first I thought this had something to do with the metro bundler not running but the app crashes both in debug and release.

I'm really just everything as described in the docs. The main problem here is a can't reproduce this error (or at least I don't know how) since it depends on an iOS update so I can't do it on the simulator, only in a real device.

EDIT: I got some logs from the crash, thanks to this buddybuild guide .

The logs for Release:

error 09:30:50.134080 +0200 assertiond Unable to obtain a task name port right for pid 19786: (os/kern) failure (0x5)

error 09:30:50.134299 +0200 assertiond Failed to start job with error { description = "Unable to get valid task name port right for pid 19786"; failureReason = "The process failed to exec"; recoverySuggestion = "Consult /var/log/com.apple.xpc.launchd/launchd.log for more information"; }

error 09:30:50.137082 +0200 SpringBoard [org.josemigallas.RealmsCounter] Bootstrap failed with error:

error 09:30:50.137354 +0200 SpringBoard Bootstrapping failed for with error: Error Domain=BKSProcessErrorDomain Code=1 "Unable to bootstrap process with bundleID org.josemigallas.RealmsCounter" UserInfo {NSLocalizedDescription=Unable to bootstrap process with bundleID org.josemigallas.RealmsCounter, BKSProcessExitReason=0, NSLocalizedFailureReason=Failed to start job, NSUnderlyingError=0x282693900 {Error Domain=NSPOSIXErrorDomain Code=3 "No such process" UserInfo={NSLocalizedFailureReason=The process failed to exec, NSLocalizedRecoverySuggestion=Consult /var/log/com.apple.xpc.launch /launchd.log for more information, NSLocalizedDescription=Unable to get valid task name port right for pid 19786}}, BSErrorCodeDescription=bootstrap-failed}

EDIT2: I found out it's happening in debug as well.. so updating the text a bit.

Thanks in advance.

Answer 1

Turned out it wasn't the updates.. but the Provisioning Profile that expires after 6 days, the application has to be rebuild and installed everytime. This happens with a free Apple developer account.

Answer 2

If this is crashing in a released app, you might be able to find the crash logs by going to Xcode->Window->Organizer and select the Crashes tab at the top.

If I were to guess, it sounds like it's taking too long for initialization, and so it's getting killed by the springboard app.

Answer 3

As far as I know there isn't a way to debug an app which is in release mode via Xcode . But what you could do is use a tool that has really helped me in debugging my production releases: Bugsnag .

It's really quick and easy to setup, and fully supports React Native. It will give you the full errors wherever the app is used.