Unhandled Exception: System.PlatformNotSupportedException: COM Interop is not supported on this platform. at System.Threading.Thread.SetApartmentStateUnchecked(ApartmentState state, Boolean throwOnError) in /_/src/mono/System.Private.CoreLib/src/System/Threading/Thread.Mono.cs:line 275 at System.Threading.Thread.SetApartmentState(ApartmentState state, Boolean throwOnError) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Thread.cs:line 507 at System.Threading.Thread.SetApartmentState(ApartmentState state) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Thread.cs:line 486 at Microsoft.Win32.SystemEventsTests.InvokeOnEventsThreadTests.<RegisterFromSTAThreadThatGoesAway_MessageStillDelivered>b__2_0() in /_/src/libraries/Microsoft.Win32.SystemEvents/tests/SystemEvents.InvokeOnEventsThread.cs:line 69 at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) in /_/src/mono/System.Private.CoreLib/src/System/Reflection/RuntimeMethodInfo.cs:line 378 --- End of stack trace from previous location --- at Microsoft.DotNet.RemoteExecutor.Program.Main(String[] args) in /_/src/Microsoft.DotNet.RemoteExecutor/src/Program.cs:line 94 [ERROR] FATAL UNHANDLED EXCEPTION: System.PlatformNotSupportedException: COM Interop is not supported on this platform. at System.Threading.Thread.SetApartmentStateUnchecked(ApartmentState state, Boolean throwOnError) in /_/src/mono/System.Private.CoreLib/src/System/Threading/Thread.Mono.cs:line 275 at System.Threading.Thread.SetApartmentState(ApartmentState state, Boolean throwOnError) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Thread.cs:line 507 at System.Threading.Thread.SetApartmentState(ApartmentState state) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Thread.cs:line 486 at Microsoft.Win32.SystemEventsTests.InvokeOnEventsThreadTests.<RegisterFromSTAThreadThatGoesAway_MessageStillDelivered>b__2_0() in /_/src/libraries/Microsoft.Win32.SystemEvents/tests/SystemEvents.InvokeOnEventsThread.cs:line 69 at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) in /_/src/mono/System.Private.CoreLib/src/System/Reflection/RuntimeMethodInfo.cs:line 378 --- End of stack trace from previous location --- at Microsoft.DotNet.RemoteExecutor.Program.Main(String[] args) in /_/src/Microsoft.DotNet.RemoteExecutor/src/Program.cs:line 94 Microsoft.Win32.SystemEventsTests.InvokeOnEventsThreadTests.RegisterFromSTAThreadThatGoesAway_MessageStillDelivered [FAIL] Microsoft.DotNet.RemoteExecutor.RemoteExecutionException : Remote process failed with an unhandled exception. Stack Trace: Child exception: System.PlatformNotSupportedException: COM Interop is not supported on this platform. /_/src/mono/System.Private.CoreLib/src/System/Threading/Thread.Mono.cs(275,0): at System.Threading.Thread.SetApartmentStateUnchecked(ApartmentState state, Boolean throwOnError) /_/src/libraries/System.Private.CoreLib/src/System/Threading/Thread.cs(507,0): at System.Threading.Thread.SetApartmentState(ApartmentState state, Boolean throwOnError) /_/src/libraries/System.Private.CoreLib/src/System/Threading/Thread.cs(486,0): at System.Threading.Thread.SetApartmentState(ApartmentState state) /_/src/libraries/Microsoft.Win32.SystemEvents/tests/SystemEvents.InvokeOnEventsThread.cs(69,0): at Microsoft.Win32.SystemEventsTests.InvokeOnEventsThreadTests.<RegisterFromSTAThreadThatGoesAway_MessageStillDelivered>b__2_0() /_/src/mono/System.Private.CoreLib/src/System/Reflection/RuntimeMethodInfo.cs(378,0): at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) Child process: Microsoft.Win32.SystemEvents.Tests, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51 Microsoft.Win32.SystemEventsTests.InvokeOnEventsThreadTests Void <RegisterFromSTAThreadThatGoesAway_MessageStillDelivered>b__2_0() Finished: Microsoft.Win32.SystemEvents.Tests === TEST EXECUTION SUMMARY === Microsoft.Win32.SystemEvents.Tests Total: 208, Errors: 0, Failed: 1, Skipped: 0, Time: 0.335s ----- end Tue 06/08/2021 8:34:33.40 ----- exit code 1 ----------------------------------------------------------