My iOS app works in simulator but instantly crashes when I try to open it on my phone

Question

[EDIT] Possible fix: my ipa was unsigned, I bought a Developer's account and will test tomorrow with a signed .ipa. [/EDIT] This is my second app. It's very simple, all it does is send a post request to my server, and display a response. It works perfectly on the iOS simulator on Xcode, but when I push the ipa to my phone, it just crashes. A friend of mine also tested it, and the same happened. Can you please take a look at the code? It's not that long: https://drive.google.com/file/d/0ByoF_XNJWlVyeHJHdHp3LVdTS3c/view?usp=sharing Here's the ipa: https://drive.google.com/file/d/0ByoF_XNJWlVyeGJrNldMb1BPMVE/view

I also can't/don't know how to get a crash report for the app on my phone, so if you need that I'd need help on how to get it too.

Thanks in advance!

Make sure your phone is connected to the internet before making post request and you have submitted build not code that i am not able to check your code — Devang Goswami, Apr 09 '15 at 04:40
Well I just ran the project on my device and its working absolutely fine. Its asking to put in some code to proceed. — Burhanuddin Sunelwala, Apr 09 '15 at 04:44
What you can do is to make a breakpoint on all exceptions, and while debugging, check where the code breaks. http://i.stack.imgur.com/LPKMV.png. Also do a clean build. — Schemetrical, Apr 09 '15 at 04:45
@BurhanuddinSunelwala can you tell me on which device/iOS version? Thanks! — Francisco Javier Herrera, Apr 09 '15 at 04:49
@BurhanuddinSunelwala Thanks. Did you build the .ipa from the xcode project yourself or installed the one I provided? I don't have a developer account, so the built ipa is unsigned. Could that have any effect? If you built it yourself, can you upload the .ipa so I can test it on my device? — Francisco Javier Herrera, Apr 09 '15 at 04:56
No, I ran the project from Xcode to my device. Let me see if I can upload the .ipa — Burhanuddin Sunelwala, Apr 09 '15 at 05:01
To find the crash report, connect your device to your mac, go to **xcode > devices > (select a device) > View Device Logs** — Burhanuddin Sunelwala, Apr 09 '15 at 05:12

KP_G · Answer 1 · 2015-04-09T05:26:12.240

1

enter image description here It would be helpful if you could paste the crash report, you can connect your device and debug it for the same.

Possibility is : You might have built your app using iOS SDK 8.0 or above and trying to run it on a lower version. Also, to make it compatible with your device you need to avoid using methods that are introduced in iOS8.

edited Apr 09 '15 at 05:26

answered Apr 09 '15 at 05:03

KP_G

460
4
15

Thanks for the suggestion. I wrote the app using XCode 5.1, the deployment target is 7.1, and the base SDK is also 7.1. I'm testing it on iPhone 6+ 8.1.1. On my phone, under Settings - Privacy - Diagnostics & Usage - Data - I can't find a crash report for the RealCode app... – Francisco Javier Herrera Apr 09 '15 at 05:08
I just downloaded your app and installed it on my device. You need to change the Code Signing from Developer to Distribution. Just check it for your Target in Build Settings --> Code Signing. Check the screenshot in the updated answer – KP_G Apr 09 '15 at 05:23
I'm afraid I still don't have a Developer account, therefore I can't sign the app :/ But I guess that's the problem, then. Is it too much to ask if you could upload the signed .ipa for me to test? – Francisco Javier Herrera Apr 09 '15 at 06:24
I would have done that if I had my own account :). But Since I am using my organization's Dev Account, I am not authorized to do so. At least you know the solution now :) – KP_G Apr 09 '15 at 06:38
Follow These steps to create an ipa. (http://stackoverflow.com/questions/26928721/how-to-create-ipa-in-xcode-6-without-apple-developer-account) and den upload it to (http://www.diawi.com/#), you will get a link. open that link in ur device's browser. – KP_G Apr 09 '15 at 06:51
Yes, I've just bought my account, it should be live tomorrow. I'll check if everything works once it's signed, and update this post with an answer. Thanks once again! – Francisco Javier Herrera Apr 09 '15 at 06:52
Yes, I thought I've added the solution... My bad. Buying the account fixed it. Thanks! – Francisco Javier Herrera Apr 16 '15 at 06:22

score 0 · Answer 2 · answered Apr 09 '15 at 04:45

Add this before you make post request to check if the internet is connected or not ..

NSURL *scriptUrl = [NSURL URLWithString:@"http://www.google.com"];
NSData *data = [NSData dataWithContentsOfURL:scriptUrl];
if (data){
    [self yourPostMethod];
}

else{
    UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Network not Reachable" message:@"Please check your internet connection!" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

        [alert show];
}

To view the source please download the zip file on the first link, and it should be on RealCode/RealCode/RCViewController.m — Francisco Javier Herrera, Apr 09 '15 at 04:51

score 0 · Answer 3 · answered Apr 09 '15 at 05:11

0

As you have mentioned you have developed app using Xcode 5.1 and deployment target to 7.1 .
If you want to make sure it should work onlatest versions, you need to update your xcode and set base sdk to latest and deployment target you can set 7.0

answered Apr 09 '15 at 05:11

sambhav

39
4

I can't upgrade xcode because I'm not on Yosemite and my update fails for some reason. This is on a hackintosh too... but I'll keep trying to update, Thanks – Francisco Javier Herrera Apr 09 '15 at 05:13

score 0 · Answer 4 · answered Apr 16 '15 at 06:23

0

Buying a Developer Account fixed my problem.

answered Apr 16 '15 at 06:23

Francisco Javier Herrera

3
4

My iOS app works in simulator but instantly crashes when I try to open it on my phone

4 Answers4