System.Exception: Failed to list devices - tvOS, iOS

[jozkee]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1311394
Build error leg or test failing: System.Runtime.Tests.WorkItemExecution
Pull request: #124906

Error Message

Fill the error message using step by step known issues guidance.

{
"ErrorMessage": "System.Exception: Failed to list devices",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}

Related: #110008 (comment)

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1311394
Error message validated: [System.Exception: Failed to list devices]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 3/3/2026 5:33:14 PM UTC

Report

Build	Repository	Test	Pull Request
1565945	dotnet/runtime	System.Runtime.Tests.WorkItemExecution	#132159
1565428	dotnet/runtime	System.Resources.ResourceManager.Tests.WorkItemExecution
1565379	dotnet/runtime	System.Drawing.Primitives.Tests.WorkItemExecution
1564198	dotnet/runtime	System.Text.Encodings.Web.Tests.WorkItemExecution
1562481	dotnet/runtime	JIT.SIMD_ro.WorkItemExecution	#132489
1561753	dotnet/runtime	System.Net.Primitives.Functional.Tests.WorkItemExecution
1561613	dotnet/runtime	System.Console.Manual.Tests.WorkItemExecution
1561741	dotnet/runtime	System.Numerics.Tensors.Tests.WorkItemExecution
1561700	dotnet/runtime	Microsoft.Extensions.Configuration.FileExtensions.Tests.WorkItemExecution
1561516	dotnet/runtime	System.Text.RegularExpressions.Unit.Tests.WorkItemExecution
1561283	dotnet/runtime	System.Collections.Tests.WorkItemExecution
1561442	dotnet/runtime	System.Threading.RateLimiting.Tests.WorkItemExecution	#132348
1560940	dotnet/runtime	System.IO.Compression.Brotli.Tests.WorkItemExecution
1560771	dotnet/runtime	Microsoft.Extensions.Configuration.Xml.Tests.WorkItemExecution
1560207	dotnet/runtime	System.Xml.Linq.TreeManipulation.Tests.WorkItemExecution
1559993	dotnet/runtime	System.Net.ServerSentEvents.Tests.WorkItemExecution
1559984	dotnet/runtime	tracing.WorkItemExecution
1559611	dotnet/runtime	System.Net.WebHeaderCollection.Tests.WorkItemExecution
1559315	dotnet/runtime	System.Runtime.Serialization.Xml.Tests.WorkItemExecution
1559365	dotnet/runtime	Microsoft.Extensions.Http.Tests.WorkItemExecution
1558829	dotnet/runtime	System.Xml.Linq.Streaming.Tests.WorkItemExecution	#132489
1558690	dotnet/runtime	System.Net.WebHeaderCollection.Tests.WorkItemExecution
1558022	dotnet/runtime	System.CodeDom.Tests.WorkItemExecution
1558665	dotnet/runtime	System.Diagnostics.TraceSource.Tests.WorkItemExecution
1557346	dotnet/runtime	System.Private.Xml.Tests.WorkItemExecution	#132467
1556608	dotnet/runtime	IcuAppLocal.Tests.WorkItemExecution
1556412	dotnet/runtime	System.IO.FileSystem.DriveInfo.Tests.WorkItemExecution
1555560	dotnet/runtime	System.Text.Json.Tests.WorkItemExecution
1555142	dotnet/runtime	tvOS.Device.Aot.Test.WorkItemExecution	#132386
1555007	dotnet/runtime	Microsoft.Extensions.Caching.Memory.Tests.WorkItemExecution
1554672	dotnet/runtime	System.Xml.Linq.Streaming.Tests.WorkItemExecution
1554343	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution
1554235	dotnet/runtime	System.IO.Pipes.Tests.WorkItemExecution	#132348
1553120	dotnet/runtime	Microsoft.Extensions.Configuration.Tests.WorkItemExecution
1552059	dotnet/runtime	System.Console.Tests.WorkItemExecution	#132216
1552139	dotnet/runtime	System.Diagnostics.Contracts.Tests.WorkItemExecution
1552117	dotnet/runtime	Regression_ro_1.WorkItemExecution	#132274
1551570	dotnet/runtime	System.Configuration.ConfigurationManager.Tests.WorkItemExecution
1551205	dotnet/runtime	System.Diagnostics.Tools.Tests.WorkItemExecution
1551332	dotnet/runtime	baseservices.WorkItemExecution
1546477	dotnet/runtime	IL_Conformance.WorkItemExecution
1546065	dotnet/runtime	iOS.CoreCLR.R2R.Test.WorkItemExecution
1544675	dotnet/runtime	System.Net.Security.Unit.Tests.WorkItemExecution	#132002
1543815	dotnet/runtime	Microsoft.Extensions.Configuration.EnvironmentVariables.Tests.WorkItemExecution
1540423	dotnet/runtime	System.Runtime.Serialization.Formatters.Disabled.Tests.WorkItemExecution
1538813	dotnet/runtime	Methodical_r2.WorkItemExecution
1538577	dotnet/runtime	Methodical_do.WorkItemExecution
1537866	dotnet/runtime	System.Composition.Convention.Tests.WorkItemExecution
1536279	dotnet/runtime	System.Runtime.Intrinsics.Tests.WorkItemExecution
1535640	dotnet/runtime	System.Xml.Schema.Extensions.Tests.WorkItemExecution
1534953	dotnet/runtime	Regression_5.WorkItemExecution
1534582	dotnet/runtime	Microsoft.Extensions.Hosting.Systemd.Tests.WorkItemExecution
1534629	dotnet/runtime	System.Runtime.Loader.RefEmitLoadContext.Tests.WorkItemExecution	#131634
1534164	dotnet/runtime	System.Text.Encoding.CodePages.Tests.WorkItemExecution
1532615	dotnet/runtime	System.Net.WebSockets.Tests.WorkItemExecution
1531367	dotnet/runtime	System.Runtime.CompilerServices.VisualC.Tests.WorkItemExecution	#131351
1530895	dotnet/runtime	System.Console.Tests.WorkItemExecution
1530310	dotnet/runtime	Microsoft.Extensions.Diagnostics.Abstractions.Tests.WorkItemExecution
1529749	dotnet/runtime	System.Formats.Asn1.Tests.WorkItemExecution
1529233	dotnet/runtime	Microsoft.Extensions.DependencyModel.Tests.WorkItemExecution
1528851	dotnet/runtime	System.Threading.ThreadPool.Tests.WorkItemExecution
1528324	dotnet/runtime	tvOS.Device.Aot.Test.WorkItemExecution	#131415
1527892	dotnet/runtime	JIT.CodeGenBringUpTests_ro.WorkItemExecution
1527467	dotnet/runtime	System.Runtime.InteropServices.Tests.WorkItemExecution

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
[+]	3	25

Report

Build	Repository	Test	Pull Request
1569865	dotnet/runtime	System.Net.WebClient.Tests.WorkItemExecution
1567845	dotnet/runtime	System.Net.WebSockets.Tests.WorkItemExecution
1567122	dotnet/runtime	readytorun.WorkItemExecution
1566157	dotnet/runtime	System.IO.Tests.WorkItemExecution
1565945	dotnet/runtime	System.Runtime.Tests.WorkItemExecution	#132159
1565428	dotnet/runtime	System.Resources.ResourceManager.Tests.WorkItemExecution
1565379	dotnet/runtime	System.Drawing.Primitives.Tests.WorkItemExecution
1564198	dotnet/runtime	System.Text.Encodings.Web.Tests.WorkItemExecution
1562481	dotnet/runtime	JIT.SIMD_ro.WorkItemExecution	#132489
1561753	dotnet/runtime	System.Net.Primitives.Functional.Tests.WorkItemExecution
1561613	dotnet/runtime	System.Console.Manual.Tests.WorkItemExecution
1561741	dotnet/runtime	System.Numerics.Tensors.Tests.WorkItemExecution
1561700	dotnet/runtime	Microsoft.Extensions.Configuration.FileExtensions.Tests.WorkItemExecution
1561516	dotnet/runtime	System.Text.RegularExpressions.Unit.Tests.WorkItemExecution
1561283	dotnet/runtime	System.Collections.Tests.WorkItemExecution
1561442	dotnet/runtime	System.Threading.RateLimiting.Tests.WorkItemExecution	#132348
1560940	dotnet/runtime	System.IO.Compression.Brotli.Tests.WorkItemExecution
1560771	dotnet/runtime	Microsoft.Extensions.Configuration.Xml.Tests.WorkItemExecution
1560207	dotnet/runtime	System.Xml.Linq.TreeManipulation.Tests.WorkItemExecution
1559993	dotnet/runtime	System.Net.ServerSentEvents.Tests.WorkItemExecution
1559984	dotnet/runtime	tracing.WorkItemExecution
1559611	dotnet/runtime	System.Net.WebHeaderCollection.Tests.WorkItemExecution
1559315	dotnet/runtime	System.Runtime.Serialization.Xml.Tests.WorkItemExecution
1559365	dotnet/runtime	Microsoft.Extensions.Http.Tests.WorkItemExecution
1558829	dotnet/runtime	System.Xml.Linq.Streaming.Tests.WorkItemExecution	#132489
1558690	dotnet/runtime	System.Net.WebHeaderCollection.Tests.WorkItemExecution
1558022	dotnet/runtime	System.CodeDom.Tests.WorkItemExecution
1558665	dotnet/runtime	System.Diagnostics.TraceSource.Tests.WorkItemExecution
1557346	dotnet/runtime	System.Private.Xml.Tests.WorkItemExecution	#132467
1556608	dotnet/runtime	IcuAppLocal.Tests.WorkItemExecution
1556412	dotnet/runtime	System.IO.FileSystem.DriveInfo.Tests.WorkItemExecution
1555560	dotnet/runtime	System.Text.Json.Tests.WorkItemExecution
1555142	dotnet/runtime	tvOS.Device.Aot.Test.WorkItemExecution	#132386
1555007	dotnet/runtime	Microsoft.Extensions.Caching.Memory.Tests.WorkItemExecution
1554672	dotnet/runtime	System.Xml.Linq.Streaming.Tests.WorkItemExecution
1554343	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution
1554235	dotnet/runtime	System.IO.Pipes.Tests.WorkItemExecution	#132348
1553120	dotnet/runtime	Microsoft.Extensions.Configuration.Tests.WorkItemExecution
1552059	dotnet/runtime	System.Console.Tests.WorkItemExecution	#132216
1552139	dotnet/runtime	System.Diagnostics.Contracts.Tests.WorkItemExecution
1552117	dotnet/runtime	Regression_ro_1.WorkItemExecution	#132274
1551570	dotnet/runtime	System.Configuration.ConfigurationManager.Tests.WorkItemExecution
1551205	dotnet/runtime	System.Diagnostics.Tools.Tests.WorkItemExecution
1551332	dotnet/runtime	baseservices.WorkItemExecution
1546477	dotnet/runtime	IL_Conformance.WorkItemExecution
1546065	dotnet/runtime	iOS.CoreCLR.R2R.Test.WorkItemExecution
1544675	dotnet/runtime	System.Net.Security.Unit.Tests.WorkItemExecution	#132002

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	47

[dotnet-policy-service]

Tagging subscribers to this area: @dotnet/runtime-infrastructure
See info in area-owners.md if you want to be subscribed.

[dotnet-policy-service]

Tagging subscribers to 'os-ios': @vitek-karas, @kotlarmilos, @steveisok, @akoeplinger
See info in area-owners.md if you want to be subscribed.

[dotnet-policy-service]

Tagging subscribers to 'os-tvos': @vitek-karas, @kotlarmilos, @steveisok, @akoeplinger
See info in area-owners.md if you want to be subscribed.

[BrzVlad]

@kotlarmilos Any thoughts on this ?

[21:43:45] crit: System.Exception: Failed to list devices.
                    at Microsoft.DotNet.XHarness.iOS.Shared.Hardware.HardwareDeviceLoader.LoadDevices(ILog log, Boolean includeLocked, Boolean forceRefresh, Boolean listExtraData, Boolean includeWirelessDevices, CancellationToken cancellationToken) in /_/src/Microsoft.DotNet.XHarness.iOS.Shared/Hardware/HardwareDeviceLoader.cs:line 104
                    at Microsoft.DotNet.XHarness.Apple.DeviceFinder.FindDevice(TestTargetOs target, String deviceName, ILog log, Boolean includeWirelessDevices, Boolean pairedDevicesOnly, CancellationToken cancellationToken) in /_/src/Microsoft.DotNet.XHarness.Apple/DeviceFinder.cs:line 74
                    at Microsoft.DotNet.XHarness.Apple.BaseOrchestrator.OrchestrateOperationInternal(TestTargetOs target, String deviceName, Boolean includeWirelessDevices, Boolean resetSimulator, Boolean enableLldb, GetAppBundleInfoFunc getAppBundle, ExecuteMacCatalystAppFunc executeMacCatalystApp, ExecuteAppFunc executeApp, CancellationToken cancellationToken) in /_/src/Microsoft.DotNet.XHarness.Apple/Orchestration/BaseOrchestrator.cs:line 215
                    at Microsoft.DotNet.XHarness.Apple.BaseOrchestrator.OrchestrateOperation(TestTargetOs target, String deviceName, Boolean includeWirelessDevices, Boolean resetSimulator, Boolean enableLldb, GetAppBundleInfoFunc getAppBundle, ExecuteMacCatalystAppFunc executeMacCatalystApp, ExecuteAppFunc executeApp, CancellationToken cancellationToken) in /_/src/Microsoft.DotNet.XHarness.Apple/Orchestration/BaseOrchestrator.cs:line 96
                    at Microsoft.DotNet.XHarness.Apple.RunOrchestrator.OrchestrateRun(GetAppBundleInfoFunc getAppBundleInfo, TestTargetOs target, String deviceName, TimeSpan timeout, TimeSpan launchTimeout, Int32 expectedExitCode, Boolean includeWirelessDevices, Boolean resetSimulator, Boolean enableLldb, Boolean signalAppEnd, Boolean waitForExit, IReadOnlyCollection`1 environmentalVariables, IEnumerable`1 passthroughArguments, CancellationToken cancellationToken) in /_/src/Microsoft.DotNet.XHarness.Apple/Orchestration/RunOrchestrator.cs:line 221
                    at Microsoft.DotNet.XHarness.CLI.Commands.Apple.AppleAppCommand`1.Invoke(ILogger logger) in /_/src/Microsoft.DotNet.XHarness.CLI/Commands/Apple/AppleAppCommand.cs:line 68
                    at Microsoft.DotNet.XHarness.CLI.Commands.XHarnessCommand`1.Invoke(IEnumerable`1 arguments) in /_/src/Microsoft.DotNet.XHarness.CLI/Commands/XHarnessCommand.cs:line 145