Stack overflow. at System.Collections.Immutable.ImmutableArray.CreateBuilder[[System.Reflection.PortableExecutable.SectionHeader, System.Reflection.Metadata, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]](Int32) at System.Reflection.PortableExecutable.PEHeaders.ReadSectionHeaders(System.Reflection.PortableExecutable.PEBinaryReader ByRef) at System.Reflection.PortableExecutable.PEHeaders..ctor(System.IO.Stream, Int32, Boolean) at System.Reflection.PortableExecutable.PEReader.InitializePEHeaders() at System.Reflection.PortableExecutable.PEReader.ReadDebugDirectory() at System.Reflection.PortableExecutable.PEReader.TryOpenAssociatedPortablePdb(System.String, System.Func`2<System.String,System.IO.Stream>, System.Reflection.Metadata.MetadataReaderProvider ByRef, System.String ByRef) at System.Diagnostics.StackTraceSymbols.TryOpenReaderFromAssemblyFile(System.String, IntPtr, Int32, Boolean) at System.Diagnostics.StackTraceSymbols+<>c__DisplayClass4_0.<TryGetReader>b__0(System.Reflection.Assembly) at System.Runtime.CompilerServices.ConditionalWeakTable`2[[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].GetValueLocked(System.__Canon, CreateValueCallback<System.__Canon,System.__Canon>) at System.Runtime.CompilerServices.ConditionalWeakTable`2[[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].GetValue(System.__Canon, CreateValueCallback<System.__Canon,System.__Canon>) at System.Diagnostics.StackTraceSymbols.TryGetReader(System.Reflection.Assembly, System.String, IntPtr, Int32, Boolean, IntPtr, Int32) at System.Diagnostics.StackTraceSymbols.GetSourceLineInfo(System.Reflection.Assembly, System.String, IntPtr, Int32, Boolean, IntPtr, Int32, Int32, Int32, System.String ByRef, Int32 ByRef, Int32 ByRef) at System.Diagnostics.StackFrameHelper.InitializeSourceInfo(Int32, Boolean, System.Exception) at System.Diagnostics.StackTrace.CaptureStackTrace(Int32, Boolean, System.Exception) at System.Diagnostics.StackTrace..ctor(System.Exception, Boolean) at System.Exception.get_StackTrace() at System.ComponentModel.Win32Exception.ToString() at System.Runtime.CompilerServices.DefaultInterpolatedStringHandler.AppendFormatted[[System.__Canon, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](System.__Canon) at GitHub.Runner.Worker.StepsRunner+<RunStepAsync>d__1.MoveNext() at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[GitHub.Runner.Worker.StepsRunner+<RunStepAsync>d__1, Runner.Worker, Version=2.316.0.0, Culture=neutral, PublicKeyToken=null]].ExecutionContextCallback(System.Object) at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[GitHub.Runner.Worker.StepsRunner+<RunStepAsync>d__1, Runner.Worker, Version=2.316.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext(System.Threading.Thread) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[GitHub.Runner.Worker.StepsRunner+<RunStepAsync>d__1, Runner.Worker, Version=2.316.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext() at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Run

The self-hosted runner: hyperv-mac1 lost communication with the server. Verify the machine is running and has a healthy network connection. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.

Error when evaluating 'strategy' for job 'iso-availability'. chef/github-workflows/.github/workflows/packer-iso-url-checker.yml@main (Line: 32, Col: 19): Matrix vector 'template' does not contain any values