App crashing immediately on start up after upgrading to iOS12.

Developer Tools & Services Xcode
AbhishekB OP
Created Sep ’18
Replies 14
Boosts 0
Views 25k
Participants 7
  • Running fine in simulator but crashes in device.
  • No crash logs recorded.
  • In line error shown after launching the app Thread 1: EXC_BAD_ACCESS (code=1, address=0x81b4288100000002).
  • No main or didFinishLaunchingWithOptions is called yet.
  • Tried re-installing the application. Tried "Eare All Content and Settings" but it does not work.
  • Enabled zombie objects but even that did not help(no logs recorded).


main method


int main(int argc, char * argv[]) {

@autoreleasepool {

return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));

}

}

Replies  14
Boosts  0
Views  25k
Participants  7
DTS Engineer OP
Apple
Sep ’18

It’s hard to say what’s going on here without more information about the crash. Please post a symbolicated Apple crash report, per Technote 2151 Understanding and Analyzing iOS Application Crash Reports.

Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware 

let myEmail = "eskimo" + "1" + "@apple.com"
0
ck_ios OP
Oct ’18

Hello Abhishek

Did you find any solution for the above issue? I am facing the same issue.


Let me know, you find any solution.

0
ck_ios OP
Oct ’18

Hello Eskimo,


I face the same issue as a face by Abhishek. I have attached the link that downloads my crash report.


Please check this issue and update me as soon as possible.


https://www.dropbox.com/s/4q1bljtdn98xzvo/eBook%20%2002-10-18%2C%207-27%20PM.crash?dl=0

0
DTS Engineer OP
Apple
Oct ’18

Thanks for the crash report. This part of the report:

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0xbed59ae800000001

indicates that the app crashed because it’s accessing an invalid pointer, one that doesn’t point to mapped memory. And indeed that pointer looks really weird, being way up in high memory.

And here’s the backtrace of the crashing thread:

Thread 0 Crashed:
0 libsystem_platform.dylib … _platform_strcmp + 8
1 eBook                    … 0x100b50000 + 5833168
2 eBook                    … 0x100b50000 + 5833432
3 libobjc.A.dylib          … call_load_methods + 184
…

Frame 3 indicates that the Objective-C runtime is calling a 

+load
method on some class. Frames 2 through 1 are your code, and they’re not symbolicated so it’s hard to say what’s going on. Frame 0 indicates that your code called 
strcmp
, which is what crashed. 
strcmp
will only crash if you pass it bogus parameters, so you need to investigate why your app has done that.

The next step here is to symbolicate your crash report to uncover the identity of frames 2 through 1. Technote 2151 Understanding and Analyzing iOS Application Crash Reports has info on symbolication.

Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware 

let myEmail = "eskimo" + "1" + "@apple.com"
0
ykmdev OP
Oct ’18

Hi!


I have the same issue - did you manged to fix it ?

0
ykmdev OP
Oct ’18

Did you fixed it?

0
DTS Engineer OP
Apple
Oct ’18

Rather than posting bumps I recommend that you address the last point in my 2 Oct post, that is, you need to get a symbolicated crash report so that you can uncover the identity of the code making this bogus 

strcmp
call.

Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware 

let myEmail = "eskimo" + "1" + "@apple.com"
0
ykmdev OP
Oct ’18

HI,


I am new to ios, and actually didn't really understand how to do that.(got in to the link and went lost)

Any further guidelines will be very helpful for me. could you help me with that?


Thank in advance,

Lior.

0
DTS Engineer OP
Apple
Oct ’18

First things first, where did you get the crash report from?

Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware 

let myEmail = "eskimo" + "1" + "@apple.com"
0
eduardo.guimaraes OP
Oct ’18

I'm with the same problem and I got this from my Crashes on my Archive Organizer. Any help?


Thread 0

0 _platform_strcmp

1 iterate_super_classes

2 cr_detectClasses

3 call_load_methods

--------------------------

11 _dyld_start

0
ykmdev OP
Oct ’18

Hi!


I finally managed to solve this bug , thanks for your help!


For any one else who had a crash in iOS 12 and have old Crittercism SDK in his project please see this post:

https://stackoverflow.com/questions/52515031/application-crashes-after-upgrading-device-to-ios12/52803939#52803939

my comment is under the name "Lior cohen".


Cheers!

0
ykmdev OP
Oct ’18

Try this: https://stackoverflow.com/questions/52515031/application-crashes-after-upgrading-device-to-ios12/52803939#52803939


If not helped, there is something in your pods or other settings that cause this crash. be patient and do some digging.

0
shan0888 OP
Oct ’18

This link may help you !!!!

https://stackoverflow.com/questions/52515031/application-crashes-after-upgrading-device-to-ios12

0
seriyvolk83 OP
Aug ’21

Just disable Metal validation in Run settings.

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App crashing immediately on start up after upgrading to iOS12.
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