.NET MAUI, how to load the crash report to Visual Studio

Question

.NET MAUI, how to load the crash report to Visual Studio

Csaba Stupak 0

I'm working on a .NET MAUI application. The project is ready and it works fine on Android. It even works fine on my iPhone - both the Debug and Release version. However when I publish the application to App Store, it is rejected because it is crashing. I received several crashlog-9850E490-EC2E-4278-A4EE-8EB08D14C815.txt like files. I'm not sure how to decode them so I can see the call-stack where the crash happens.

For Windows project I always have a *.dmp file what I can open using Visual Studio and see the call-stack. However I'm not sure how to open such iOS crash report using Visual Studio for Mac.

Any help is appreciated. Thanks!

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2023-06-20T02:47:02.72+00:00

You got the crash log during uploading the app to AppStore (such as getting the error log from Transporter), right? Or have you committed a review to Apple and received the crash log in Appstore Connect? I'm not sure how your crashlog-9850E490-EC2E-4278-A4EE-8EB08D14C815.txt looks like, could you describe more or share some crash log with me? And you could try to check Apple's doc- Examining the fields in a crash report.
Csaba Stupak 0 Reputation points

2023-06-20T06:08:44.8266667+00:00

The publish to Appstore is OK at least I have no error log from Transporter. The crash happens when Appstore reviewed my published application on real devices. I downloaded 3 crashlog files from Appstore Connect but I have hard time to understand why it crashes. I'm a C#/XAML developer and I expected there is a way to somehow load this crashlog to Visual Studio and see the callstack in my C# code what is the problem. I attached one of my crashlog file.

Many thanks for your help! :-)

crashlog-8EF4DA38-4D06-4370-9FDA-4432634F4FB8.txt
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2023-06-20T09:53:22.84+00:00

The crash log is sent by Apple, you cannot see the call-stack via VS. From the crash log, the app crashes on iOS16.5 iPhone14, do you test your app on iOS16.5 device? And it points to a set of images, I'm not sure how you set the images, you could try to check if you set them in CarouselView or CollectionView or ListView.
Csaba Stupak 0 Reputation points

2023-06-20T10:04:09.7333333+00:00

I test the application on iPhone 13 mini with iOS 16.5. Also tried it on simulator using the given iPhone 14,4 device. It worked fine - no crash.

I use some images in my app but I guess it would crash on my iPhone as well, if it causes some issues. The previous version of the application passed the review. In the new version I just added deep-link support, and display the QR code scanner page after the start. About one month ago I had to sign the new Apple program license agreement. Because of this I had problem with debug Profile - I could not deploy my app to devices, but created a new profile and it works now. In case of distribution profile I had to renew it.

So I'm in pretty hopeless situation - can't reproduce the crash, can't see the call-stack or the reason why it crashes, do not have the steps.

Any idea what else should I tried is welcomed :-)
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2023-06-21T06:55:58.5+00:00

You could try to connect the Apple review team and ask if they could provide some screen recording video to you or some other messages. At the bottom of the rejected message in AppStore Connect, there is a "Reply to App Review" button, you could try to get further support from Apple.

1 answer

Your answer

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2023-06-20T02:47:02.72+00:00

You got the crash log during uploading the app to AppStore (such as getting the error log from Transporter), right? Or have you committed a review to Apple and received the crash log in Appstore Connect? I'm not sure how your crashlog-9850E490-EC2E-4278-A4EE-8EB08D14C815.txt looks like, could you describe more or share some crash log with me? And you could try to check Apple's doc- Examining the fields in a crash report.
Csaba Stupak 0 Reputation points

2023-06-20T06:08:44.8266667+00:00

The publish to Appstore is OK at least I have no error log from Transporter. The crash happens when Appstore reviewed my published application on real devices. I downloaded 3 crashlog files from Appstore Connect but I have hard time to understand why it crashes. I'm a C#/XAML developer and I expected there is a way to somehow load this crashlog to Visual Studio and see the callstack in my C# code what is the problem. I attached one of my crashlog file.

Many thanks for your help! :-)

crashlog-8EF4DA38-4D06-4370-9FDA-4432634F4FB8.txt
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2023-06-20T09:53:22.84+00:00

The crash log is sent by Apple, you cannot see the call-stack via VS. From the crash log, the app crashes on iOS16.5 iPhone14, do you test your app on iOS16.5 device? And it points to a set of images, I'm not sure how you set the images, you could try to check if you set them in CarouselView or CollectionView or ListView.
Csaba Stupak 0 Reputation points

2023-06-20T10:04:09.7333333+00:00

I test the application on iPhone 13 mini with iOS 16.5. Also tried it on simulator using the given iPhone 14,4 device. It worked fine - no crash.

I use some images in my app but I guess it would crash on my iPhone as well, if it causes some issues. The previous version of the application passed the review. In the new version I just added deep-link support, and display the QR code scanner page after the start. About one month ago I had to sign the new Apple program license agreement. Because of this I had problem with debug Profile - I could not deploy my app to devices, but created a new profile and it works now. In case of distribution profile I had to renew it.

So I'm in pretty hopeless situation - can't reproduce the crash, can't see the call-stack or the reason why it crashes, do not have the steps.

Any idea what else should I tried is welcomed :-)
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2023-06-21T06:55:58.5+00:00

You could try to connect the Apple review team and ask if they could provide some screen recording video to you or some other messages. At the bottom of the rejected message in AppStore Connect, there is a "Reply to App Review" button, you could try to get further support from Apple.

Answer 1

Csaba Stupak 0

It looks like the issue was with Profile certificate. Not sure if the certificate became invalid because of new Apple program license agreement or due to deep-link support I added to my application.

Anyway this was pretty frustrating. The problem I see here that the compiler and the publish process did not warn about the certificate issue and I just can guess what could be the problem and do trial-error approach to solve the issue...

In this case it took 2 weeks until I find that this is the problem :-(

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2023-06-27T01:36:38.8833333+00:00

I'm so glad you solved the problem. Thanks for your sharing.

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.NET MAUI, how to load the crash report to Visual Studio

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