Build crashes on iPadOS immediately when using Location

[justadaniel]

Description

I'm trying to build an app I'm making that utilizes location to iPad. I've encountered this bug in Xamarin.Forms before. It pretty much comes down to the fact that iPads don't have a GPS, but location services still work thanks to location detection through WiFi. I don't know what is specifically going on under the hood, the kit is mainly for iPhone & Apple Watch, but Apple says that SensorKit is available to iPadOS as well.

Apple Docs: SensorKit

Steps to Reproduce

1. Create a project.
2. Utilize location services.
3. Deploy to iPad.
4. Crash on boot.

Version with bug

6.0 (current)

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iOS/iPadOS 14+

Did you find any workaround?

None

Relevant log output

Launched application '<AppID>' on 'Daniel Christmas’ iPad' with pid 31794
dyld[31794]: Library not loaded: /System/Library/Frameworks/SensorKit.framework/SensorKit
  Referenced from: /private/var/containers/Bundle/Application/00DCEA18-CEB4-40A7-B7E3-633DCA2CC3A1/<DisplayName>.app/<DisplayName>
  Reason: tried: '/System/Library/Frameworks/SensorKit.framework/SensorKit' (no such file)
Application '<AppID>' terminated (with exit code '' and/or crashing signal '6).

[Eilon]

@justadaniel - can you please show the exact code you are using to get the location? Ideally, a complete project uploaded as a GitHub repo (not a ZIP). But at a minimum, showing the C# code that you used, including any relevant context. Thank you!

[ghost]

Hi @justadaniel. We have added the "s/needs-repro" label to this issue, which indicates that we require steps and sample code to reproduce the issue before we can take further action. Please try to create a minimal sample project/solution or code samples which reproduce the issue, ideally as a GitHub repo that we can clone. See more details about creating repros here: https://github.com/dotnet/maui/blob/main/.github/repro.md

This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[justadaniel]

@justadaniel - can you please show the exact code you are using to get the location? Ideally, a complete project uploaded as a GitHub repo (not a ZIP). But at a minimum, showing the C# code that you used, including any relevant context. Thank you!

Here, I'll leave the previous issue on XF here for reference while I make a project. It is indeed happening due to a mixture of MTouchLink and calling location services apis. dotnet/macios#9938

[Eilon]

@justadaniel thank you, that will be helpful to the investigation.

[justadaniel]

@justadaniel - can you please show the exact code you are using to get the location? Ideally, a complete project uploaded as a GitHub repo (not a ZIP). But at a minimum, showing the C# code that you used, including any relevant context. Thank you!

Here's a link to the repo I just made. Be sure to build to a physical device.

Log:
dyld[39463]: Library not loaded: /System/Library/Frameworks/SensorKit.framework/SensorKit Referenced from: /private/var/containers/Bundle/Application/81B9CC16-616E-4C0C-9B8C-A2CCD1B7A909/DotNetMaui-LocationCrash.app/DotNetMaui-LocationCrash Reason: tried: '/System/Library/Frameworks/SensorKit.framework/SensorKit' (no such file) Application 'com.companyname.dotnetmaui_locationcrash' terminated (with exit code '0' and/or crashing signal '). Launched application 'com.companyname.dotnetmaui_locationcrash' on 'Daniel Christmas’ iPad' with pid 39463

[jfversluis]

Hey @justadaniel sorry it's been a while. Can you please confirm this is still an issue in current versions? Thanks!

[ghost]

Hi @justadaniel. We have added the "s/needs-info" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[ghost]

We've added this issue to our backlog, and we will work to address it as time and resources allow. If you have any additional information or questions about this issue, please leave a comment. For additional info about issue management, please read our Triage Process.

[ghost]

This issue has been automatically marked as stale because it has been marked as requiring author feedback but has not had any activity for 4 days. It will be closed if no further activity occurs within 3 days of this comment. If it is closed, feel free to comment when you are able to provide the additional information and we will re-investigate.