Value cannot be null. Parameter name: returnType at Microsoft.CodeAnalysis.CSharp.SyntaxFactory.MethodDeclaration

[GrahamTheCoder]

Input code

Unknown

Erroneous output

Multiple forms were unable to be loaded after the conversion. Trying to convert one of these gave the following error(s) Writing converted files to disk:

• Failure processing PP Logistics\Forms\xfrmTUNPopup.vb System.ArgumentNullException: Value cannot be null. Parameter name: returnType

at Microsoft.CodeAnalysis.CSharp.SyntaxFactory.MethodDeclaration(SyntaxList`1 attributeLists, SyntaxTokenList modifiers, TypeSyntax returnType, ExplicitInterfaceSpecifierSyntax explicitInterfaceSpecifier, SyntaxToken identifier, TypeParameterListSyntax typeParameterList, ParameterListSyntax parameterList, SyntaxList`1 constraintClauses, BlockSyntax body, ArrowExpressionClauseSyntax expressionBody, SyntaxToken semicolonToken) 
at ICSharpCode.CodeConverter.CSharp.VisualBasicConverter.NodesVisitor.VisitDeclareStatement(DeclareStatementSyntax node) 
at Microsoft.CodeAnalysis.VisualBasic.Syntax.DeclareStatementSyntax.Accept[TResult](VisualBasicSyntaxVisitor`1 visitor) 
at Microsoft.CodeAnalysis.VisualBasic.VisualBasicSyntaxVisitor`1.Visit(SyntaxNode node) 
at ICSharpCode.CodeConverter.CSharp.CommentConvertingNodesVisitor.DefaultVisit(SyntaxNode node) 
at Microsoft.CodeAnalysis.VisualBasic.VisualBasicSyntaxVisitor`1.VisitDeclareStatement(DeclareStatementSyntax node) 
at Microsoft.CodeAnalysis.VisualBasic.Syntax.DeclareStatementSyntax.Accept[TResult](VisualBasicSyntaxVisitor`1 visitor) 
at ICSharpCode.CodeConverter.CSharp.VisualBasicConverter.NodesVisitor.<>c__DisplayClass27_0.<<ConvertMembers>g__ConvertMembersInner\|0>d.MoveNext() 
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) 
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source) 
at ICSharpCode.CodeConverter.CSharp.VisualBasicConverter.NodesVisitor.ConvertMembers(SyntaxList`1 members) 
at ICSharpCode.CodeConverter.CSharp.VisualBasicConverter.NodesVisitor.VisitClassBlock(ClassBlocBy 

• Extension qna from Chris Jenkinson 2018-7-30

Expected output

Unknown

Details

Product in use: VS extension

Version in use: ~5.9