VS2017 conversion show big error message

I have installed newest version of converter in VS 2017 Enterprise. If I want convert VB.NET code to C# I get this error message:

---------------------------
Code converter
---------------------------
An error has occured during conversion - press Ctrl+C to copy the details: System.MissingMethodException: Method not found: 'Void System.Threading.Tasks.Dataflow.DataflowBlockOptions.set_EnsureOrdered(Boolean)'.
   at ICSharpCode.CodeConverter.Shared.AsyncEnumerableTaskExtensions.<ParallelSelectAwait>d__1`2.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at System.Runtime.CompilerServices.AsyncIteratorMethodBuilder.MoveNext[TStateMachine](TStateMachine& stateMachine)
   at ICSharpCode.CodeConverter.Shared.AsyncEnumerableTaskExtensions.<ParallelSelectAwait>d__1`2.System.IAsyncDisposable.DisposeAsync()
   at System.Runtime.CompilerServices.ConfiguredCancelableAsyncEnumerable`1.Enumerator.DisposeAsync()
   at System.Collections.Generic.AsyncEnumerableHelpers.<ToArrayWithLength>d__1`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Threading.Tasks.ValueTask`1.get_Result()
   at System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable`1.ConfiguredValueTaskAwaiter.GetResult()
   at System.Collections.Generic.AsyncEnumerableHelpers.<ToArray>d__0`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at ICSharpCode.CodeConverter.Shared.ProjectConversion.<Convert>d__19.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Threading.Tasks.Sources.ManualResetValueTaskSourceCore`1.GetResult(Int16 token)
   at ICSharpCode.CodeConverter.Shared.ProjectConversion.<Convert>d__19.System.Threading.Tasks.Sources.IValueTaskSource<System.Boolean>.GetResult(Int16 token)
   at System.Collections.Generic.AsyncEnumerableHelpers.<ToArrayWithLength>d__1`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Collections.Generic.AsyncEnumerableHelpers.<ToArrayWithLength>d__1`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Threading.Tasks.ValueTask`1.get_Result()
   at System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable`1.ConfiguredValueTaskAwaiter.GetResult()
   at System.Collections.Generic.AsyncEnumerableHelpers.<ToArray>d__0`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Threading.Tasks.ValueTask`1.get_Result()
   at ICSharpCode.CodeConverter.Shared.ProjectConversion.<ConvertSingle>d__10`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at ICSharpCode.CodeConverter.VsExtension.CodeConversion.<ConvertDocumentUnhandledAsync>d__23`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at ICSharpCode.CodeConverter.VsExtension.CodeConversion.<>c__DisplayClass15_0`1.<<ConvertDocumentAsync>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.Threading.JoinableTask.<JoinAsync>d__78.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.Threading.JoinableTask`1.<JoinAsync>d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at ICSharpCode.CodeConverter.VsExtension.CodeConversion.<ConvertDocumentAsync>d__15`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at ICSharpCode.CodeConverter.VsExtension.ConvertVBToCSCommand.<ConvertDocumentAsync>d__24.MoveNext()
---------------------------
OK   
---------------------------

Output window: Converting XXXXX.aspx.vb…

Phase 1 of 2:

That is all. Can you help me?

[GrahamTheCoder]

Makes sense, thanks for the info. I would like to keep VS2017 going as long as possible for the reason you describe, but it’s pretty hard to stay compatible while making use of the great new tools available.

I’ve put in a tentative fix, would you mind trying it? There’s a CI build artifact you can try here: https://icsharpcode.visualstudio.com/icsharpcode-pipelines/_build/results?buildId=1188&view=results Again, uninstall the extension, close all VS windows, then install the vsix from the “published artifact”

[Rado8267]

It’s working, Thank you 😃