Fix DNS-invalid hostnames with underscores in dotnet new templates#64988
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Jan 10, 2026 in 0s
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✅ [aspnetcore-template-tests-pr]
Build Rerun
✔️ Build passed after 1 retries.
(Attempt #1) [link to build]
aspnetcore-ci / Build / Tests: Helix x64 Subset 1 / Run build.cmd helix target
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❌.packages\microsoft.dotnet.helix.sdk\11.0.0-beta.26057.107\tools\Microsoft.DotNet.Helix.Sdk.MultiQueue.targets(91,5): error : (NETCORE_ENGINEERING_TELEMETRY=Test) Work item IIS.NewHandler.FunctionalTests--net10.0 in job 8c5f0f63-d7c7-42bd-a1b5-166b8d4ec767 has failed.
[Failure log]
Non-Deterministic Test Failures Detected
❌ IIS.NewHandler.FunctionalTests--net10.0.WorkItemExecution [Console] [Details] [Artifacts] [0.94% failure rate]
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This is a helix work item crash with status: BadExit. To investigate look the [Console log] / navigate to [Helix Artifacts]
Failing Configuration
❌ Microsoft.AspNetCore.Server.IIS.NewHandler.FunctionalTests.ShutdownTests.ConfigurationChangeCanBeIgnoredInProcess [Console] [Details] [Artifacts] [1.72% failure rate]
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- Exception Message
System.AggregateException : Operation did not succeed after 15 retries, serverManagerConfig: Site Name:Default Web Site Id:1 State:Stopped AppPool Name:DefaultAppPool Id:Microsoft.Web.Administration.ApplicationPoolProcessModel State:Stopping (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) (WorkerProcess not stopped yet) ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet ---- System.InvalidOperationException : WorkerProcess not stopped yet
- CallStack
at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.RetryServerManagerAction(Action`1 action) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 505 at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.Stop() in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 386 ----- Inner Stack Trace #1 (System.InvalidOperationException) ----- at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.<Stop>b__27_0(ServerManager serverManager) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 426 at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.RetryServerManagerAction(Action`1 action) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 482 ----- Inner Stack Trace #2 (System.InvalidOperationException) ----- at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.<Stop>b__27_0(ServerManager serverManager) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 426 at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.RetryServerManagerAction(Action`1 action) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 482 ----- Inner Stack Trace #3 (System.InvalidOperationException) ----- at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.<Stop>b__27_0(ServerManager serverManager) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 426 at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.RetryServerManagerAction(Action`1 action) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 482 ----- Inner Stack Trace #4 (System.InvalidOperationException) ----- at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.<Stop>b__27_0(ServerManager serverManager) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 426 at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.RetryServerManagerAction(Action`1 action) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 482 ----- Inner Stack Trace #5 (System.InvalidOperationException) ----- at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.<Stop>b__27_0(ServerManager serverManager) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 426 at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.RetryServerManagerAction(Action`1 action) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 482 ----- Inner Stack Trace #6 (System.InvalidOperationException) ----- at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.<Stop>b__27_0(ServerManager serverManager) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 426 at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.RetryServerManagerAction(Action`1 action) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 482 ----- Inner Stack Trace #7 (System.InvalidOperationException) ----- at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.<Stop>b__27_0(ServerManager serverManager) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 426 at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.RetryServerManagerAction(Action`1 action) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 482 ----- Inner Stack Trace #8 (System.InvalidOperationException) ----- at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.<Stop>b__27_0(ServerManager serverManager) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 426 at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.RetryServerManagerAction(Action`1 action) in /_/src/Servers/IIS/IntegrationTesting.IIS/src/IISDeployer.cs:line 482 ----- Inner Stack Trace #9 (System.InvalidOperationException) ----- at Microsoft.AspNetCore.Server.IntegrationTesting.IIS.IISDeployer.<Stop>b__27_0(ServerManager server
Failing Configuration
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