RefactoringEssentials.CSharp.CodeRefactorings.IterateViaForeachAction

[default-writer]

System.NullReferenceException : Object reference not set to an instance of an object.
   at RefactoringEssentials.CSharp.CodeRefactorings.IterateViaForeachAction.<>c__DisplayClass2_0.<Handle>b__0(CancellationToken ct)
   at RefactoringEssentials.DocumentChangeAction.GetChangedDocumentAsync(CancellationToken cancellationToken)
   at async Microsoft.CodeAnalysis.CodeActions.CodeAction.GetChangedSolutionAsync(<Unknown Parameters>)
   at async Microsoft.CodeAnalysis.CodeActions.CodeAction.ComputeOperationsAsync(<Unknown Parameters>)
   at async Microsoft.CodeAnalysis.CodeActions.CodeAction.ComputePreviewOperationsAsync(<Unknown Parameters>)
   at async Microsoft.CodeAnalysis.CodeActions.CodeAction.GetPreviewOperationsAsync(<Unknown Parameters>)
   at async Microsoft.CodeAnalysis.Editor.Implementation.Suggestions.SuggestedAction.GetPreviewResultAsync(<Unknown Parameters>)
   at async Microsoft.CodeAnalysis.Editor.Implementation.Suggestions.SuggestedActionWithNestedFlavors.<>c__DisplayClass11_0.<GetPreviewAsync>b__0(<Unknown Parameters>)
   at async Microsoft.CodeAnalysis.Extensions.IExtensionManagerExtensions.PerformFunctionAsync[T](<Unknown Parameters>)

[nick-morhun]

Any code example?