Unable to deploy to iOS simulator

Question

First I am a complete newbie to Xamarin. I inherited a project, and have learned enough to get around on the Android side. I have my changes made and want to test the iOS side. I follow all the instructions to pair to a Mac, it connects. The iOS simulator will launch. But it will not open the program. It does not matter what simulator I choose. It does not matter if I am using VS 2019 or VS2022. Nothing but a black screen.

I tried to create a blank out of the box project in VS2022, and again nothing shows on the simulator.

Android works as expected.

One other thing, I am not sure if it related or not. When I try to stop the debug session on the iOS project, it takes several minutes. And a error message that starts with [N/A] Mono: the debugger is still attaching to the process or the process is not currently..........

OUTPUT Window from Build

1>    Bundle Id: com.companyname.XamarinTest
1>    App Id: com.companyname.XamarinTest
1>  XamarinTest.iOS -> C:\Temp\XamarinTest\XamarinTest\XamarinTest.iOS\bin\iPhoneSimulator\Debug\XamarinTest.iOS.exe
========== Build: 1 succeeded, 0 failed, 1 up-to-date, 0 skipped ==========
========== Deploy: 0 succeeded, 0 failed, 0 skipped ==========
Launching 'XamarinTest.iOS' on 'iPad (9th generation) iOS 15.5'...

From Build Order

1> Bundle Id: com.companyname.XamarinTest
1> App Id: com.companyname.XamarinTest
1> XamarinTest.iOS -> C:\Temp\XamarinTest\XamarinTest\XamarinTest.iOS\bin\iPhoneSimulator\Debug\XamarinTest.iOS.exe
========== Build: 1 succeeded, 0 failed, 1 up-to-date, 0 skipped ==========
========== Deploy: 0 succeeded, 0 failed, 0 skipped ==========

Debug is empty

From Xamarin

Build properties for C:\Temp\XamarinTest\XamarinTest\XamarinTest.iOS\XamarinTest.iOS.csproj: VisualStudioProcessId: 33240, RunConfiguration: Default, ArchiveOnBuild: False, ArchivePath: , IsAppDistribution: False, SolutionPath: C:\Temp\XamarinTest\XamarinTest\XamarinTest.sln, SolutionName: XamarinTest, MessagingVersion: 17.1.0.329, DeviceSpecificBuild: false, TargetiOSDevice: , IsHotRestartBuild: False, _DotNetRootRemoteDirectory: /Users/bobcummings\Library\Caches\Xamarin\XMA\SDKs\dotnet/, ServerSshPort: 22, ServerTcpPort: 57829, ServerUser: Bob Cummings, ContinueOnDisconnected: False, ServerAddress: 172.30.231.146
Starting Simulator to launch App...
The Simulator has been started to launch App...

And nothing from Xamarin Diagnostics - Emulator

cheers
bob

Answer 1

Good Morning @Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.)

I believe I am signed in correctly, but I still can not find the button to vote?

cheers

Answer 2

Hello,

This is a known issue for which there has been fixed in the most recent release version, see Visual Studio feedback : https://developercommunity.visualstudio.com/t/Visual-Studio-2022-1711-iOS-simulator-/1695537?viewtype=solutions

I see your MessagingVersion is 17.1.0.329, try to update VS2022, clean bin/obj folder and test again.
You also could debug directly via VS for Mac.

Best Regards,
Wenyan Zhang

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