Xamarin iOS deployment failing after iOS 15 update

VC 1

A Xamarin application that was successfully deploying to local iOS devices now fails. Only 2 changes:

The devices are now updated with iOS 15
Visual Studio was also updated to 16.11.3 from previous update.

The error message is:
Deploy Error: Could not install the application 'C:\Users...iOS.ipa' on the device xxx. Details: ApplicationVerificationFailed(3892346901) - Failed to verify code signature of /var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.3nSuVH/extracted/Payload/....iOS.app : 0xe8008015 (A valid provisioning profile for this executable was not found.)

I have tried deleting and re-adding the apple account and changing devices (I don't have an iOS 14.x device now unfortunately but nothing else has changed).

Development environment: VS 2019 16.11.3 (updated to latest version) on a PC with iPad/iPhone connected locally through USB.

VC 1 Reputation point

2021-09-21T15:35:39.24+00:00

I also created an empty Xamarin Mobile app from the VS template (reconnecting the Apple account) but found the same problem.
The problem also occurs with VS2022 Preview 4.
HopeA2B 1 Reputation point

2021-09-27T14:08:20.03+00:00

I am experiencing the same issue developing from a Mac.

I am on Xcode 13.0
Ios 15 stable version
Visual Studio for Mac 8.10.9 (build 3)

I am assuming that this version of Visual Studio isn't compatible with the latest iOS 15 Dev tools? If that's the case, when can we expect an update? Thank you.
Pat Caruthers 96 Reputation points

2021-09-27T17:34:32.96+00:00

II have a similar problem, however i am running XCode 12.5.1 and VS 8.10.9
Both manual and automatic provisioning fail with the "no valid profile found"
A.Chokoev 1 Reputation point

2021-09-27T19:26:10.26+00:00
Hello ,

I am experiencing the same problem. I updated my iOS device to iOS 15 and I am no longer able to debug with Hot Restart in Xamarin Forms.

Steps I took to resolve the issue:

Update Visual Studio to the latest Version 16.11.3.

Tried manual provisioning.

Add wildcard to my Apple Dev account.

Change Entitlements.plist.

The issue persist on a fresh new project with no code in it and no additional functionality based on iOS 15 API`s.
VC 1 Reputation point

2021-09-29T14:42:33.123+00:00

I created an incident report for the VS Team.

For those affected by the problem, you can vote for it and follow it here:

https://developercommunity.visualstudio.com/t/Xamarin-iOS-deployment-failing-after-iOS/1541200
Pat Caruthers 96 Reputation points

2021-09-29T16:50:50.13+00:00

I should have mentioned that None of my devices are iOS 15, they are all still running iOS 14.8
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 26,751 Reputation points Microsoft Vendor

2021-09-30T04:41:33.21+00:00

Thank you for your report, you can continue to follow the progress, I will report this issue by internal ways as well.
Cliff 1 Reputation point MVP

2021-12-17T22:58:39.053+00:00

I am seeing the same issue with VS19 (16.11.8) and using Hot Restart to connect to an iPhone that is running iOS 15.2 and the same problem of the provisioning profile.

Did anyone find the solution to this issue as it's been a few months...

Thanks

Cliff.
Pablo Albanese 1 Reputation point

2021-12-20T14:51:21.073+00:00

Same issue here, it's impossible to deploy with VS19 16.11.8 with Hot Restart and iPhone iOS 15.2. I create again all certificates and provisioning files and nothing works.

2 answers

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 26,751 Reputation points Microsoft Vendor

2021-09-22T07:28:18.26+00:00

Hello,
Welcome to our Microsoft Q&A platform!
Xamarin.iOS latest version supports for Xcode 12.5 and iOS 14. If you use VS 2019 16.11.3 and Xcode12.5, you could have a try to use Manuan Provisioning and check the profile in your mac . However, it doesn't include the iOS 15 SDKs APIs, if you use new features, some unknown error may occur when you deploy it to device.
For more nformation, you can refer to
https://learn.microsoft.com/en-us/xamarin/ios/deploy-test/provisioning/
https://github.com/xamarin/xamarin-macios/issues/12778
Best Regards,
Wenyan Zhang

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1 person found this answer helpful.
VC 1 Reputation point

2021-09-24T09:24:00.037+00:00

Thank you Wenyan for your thoughts and for getting back... much appreciated.

I am not using XCode on a mac at the moment. I am deploying from a PC directly to attached iOS devices. The app is not using anything specific to iOS 15... and the problem is simply with the deployment.

I have tried manual provisioning but the error remains.

I cannot see anything in the provisioning that determines the iOS version apart from the Deployment Target in info.plist (which I now set to 14.0 without effect).

S.A 1 Reputation point

2021-09-27T08:05:53.467+00:00

I have the same problem with IOS15. I don´t have a device with IOS 14 anymore, but it worked before.

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 26,751 Reputation points Microsoft Vendor

2021-09-27T09:51:03.283+00:00

I'm so sorry to tell you that if you want deploy app to your device you need pair to mac, for more information, you can refer to
https://learn.microsoft.com/en-us/xamarin/ios/get-started/installation/windows/connecting-to-mac/

Christian Roberto Zaragoza 116 Reputation points

2021-10-02T16:29:32.777+00:00

Hola WenyanZhang-MSFT, estoy experimentando el mismo problema, uso windows 10 y visual studio 2019, ya no se puede usar mas windows 10 y visual studio 2019 para probar aplicaciones iOS? agradezco su respuesta. Muchas gracias.
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Pat Caruthers 96 Reputation points

2021-10-04T15:26:26.977+00:00

I found the latest VS, version 8.10.10 for the Mac works with the latest Xcode, version 13.0

I had removed my old profiles and remake them, but do not know if that was necessary.
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