VS mac update crashed and now I have strange errors.

Question

VS mac update crashed and now I have strange errors.

shaun pryszlak 26

My mac crashed while VS was updating to the latest version. I use it for Xamarin.Forms and generally debug the iOS versions locally.

Now when I run my app in the simulator it comes up with the splash screen and then closes with the attached error log. I was was tidying up the xcassets folder and thought it might have been related to that. there were a few duplicate .pdf images in there.

In the end I removed VS, dot net core (via the scripts on the MS web site) and xcode, rebooted and then reinstalled them. The app loaded up fine the first time but when I started making some .XAML changes it crashed again.

Any idea what the log file says?

269394-ios-sim-error.txt

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

2022-12-12T05:29:10.8+00:00

Hi @shaun pryszlak , your simulator not VS crashes when you debug the project, right? I checked the log, it was caused by Code Signing. Your App is named Gallery, do you load the local photo from the device or Camera? If so, you can check the NSPhotoLibraryUsageDescription key and NSCameraUsageDescription key in Info.plist .
In addition, it's not clear if you add any capabilities for your app, would you mind sharing the Info.plist and the Entitlements.plistin the Xamarin.iOS project? May I ask if the simulator crashed when you build and run an empty Xamarin.Forms project? And if it works when you run your app on an iOS physical device?
shaun pryszlak 26 Reputation points

2022-12-12T13:40:01.563+00:00

@Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) Funny you should say that. Yes, the simulator opens a window with that crash log in it. That is the latest simulator from the latest xcode.

I have a library i have writtten with two apps using it, lets call them A and B. With app B i added the ability to download a file and save it to the camera roll and in app purchasing to turn this on. Now i am updating app A to use these functions. The library is used but there is no UI to let the user save or buy anything. I did not have the NSPhotoLibraryUsageDescription but have added it. I

have actually released a version of app A that uses the library and it is in the store. Debugging on a physical device is fine. The app runs with no problem. On the simulator though the splash screen does not appear. It is just black and then it crashes. Attached are the two files you mentioned.

269687-info.txt
269731-entitlements.txt

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

2022-12-12T05:29:10.8+00:00

Hi @shaun pryszlak , your simulator not VS crashes when you debug the project, right? I checked the log, it was caused by Code Signing. Your App is named Gallery, do you load the local photo from the device or Camera? If so, you can check the NSPhotoLibraryUsageDescription key and NSCameraUsageDescription key in Info.plist .
In addition, it's not clear if you add any capabilities for your app, would you mind sharing the Info.plist and the Entitlements.plistin the Xamarin.iOS project? May I ask if the simulator crashed when you build and run an empty Xamarin.Forms project? And if it works when you run your app on an iOS physical device?
shaun pryszlak 26 Reputation points

2022-12-12T13:40:01.563+00:00

@Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) Funny you should say that. Yes, the simulator opens a window with that crash log in it. That is the latest simulator from the latest xcode.

I have a library i have writtten with two apps using it, lets call them A and B. With app B i added the ability to download a file and save it to the camera roll and in app purchasing to turn this on. Now i am updating app A to use these functions. The library is used but there is no UI to let the user save or buy anything. I did not have the NSPhotoLibraryUsageDescription but have added it. I

have actually released a version of app A that uses the library and it is in the store. Debugging on a physical device is fine. The app runs with no problem. On the simulator though the splash screen does not appear. It is just black and then it crashes. Attached are the two files you mentioned.

269687-info.txt
269731-entitlements.txt

Answer 1

Hello @shaun pryszlak ,

Debugging on a physical device is fine. The app runs with no problem.

From the Info.plist file, I can see that your app requires many permissions, and some features are not supported with simulator by Apple such as app purchasing. It is unclear which feature causes the crash. It's recommended that you debug/test the app on your physical device.

For the simulator testing limitation and more details, you can read the Doc from Apple: Simulator Overview - Simulator Help (apple.com)

Best Regards,
Wenyan Zhang

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

2022-12-30T10:20:03.977+00:00

Hello @shaun pryszlak , I have not heard from you for a couple of days. Please let me know if there is anything that I can help here.

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VS mac update crashed and now I have strange errors.

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