Binary VB.Net Exercise - Visual Basic Programming Course

Imports System
Public Class exercise69
    Public Shared Sub Main()
        Dim answer As String
        Dim result As String

        Do
            Console.Write("Number to convert (or ""end"")? ")
            answer = Console.ReadLine()

            If answer <> "end" Then
                Dim n As Integer = Convert.ToInt32(answer)
                result = ""

                While n > 1
                    Dim remainder As Integer = n Mod 2
                    result = Convert.ToString(remainder) & result
                                        ' Cannot convert ExpressionStatementSyntax, System.ArgumentOutOfRangeException: Exception of type 'System.ArgumentOutOfRangeException' was thrown.
' Parameter name: op
' Actual value was DivideAssignmentStatement.
'    at ICSharpCode.CodeConverter.Util.VBUtil.GetExpressionOperatorTokenKind(SyntaxKind op)
'    at ICSharpCode.CodeConverter.VB.NodesVisitor.MakeAssignmentStatement(AssignmentExpressionSyntax node)
'    at ICSharpCode.CodeConverter.VB.NodesVisitor.VisitAssignmentExpression(AssignmentExpressionSyntax node)
'    at Microsoft.CodeAnalysis.CSharp.Syntax.AssignmentExpressionSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
'    at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.Visit(SyntaxNode node)
'    at ICSharpCode.CodeConverter.VB.CommentConvertingNodesVisitor.DefaultVisit(SyntaxNode node)
'    at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.VisitAssignmentExpression(AssignmentExpressionSyntax node)
'    at Microsoft.CodeAnalysis.CSharp.Syntax.AssignmentExpressionSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
'    at ICSharpCode.CodeConverter.VB.MethodBodyVisitor.ConvertSingleExpression(ExpressionSyntax node)
'    at ICSharpCode.CodeConverter.VB.MethodBodyVisitor.VisitExpressionStatement(ExpressionStatementSyntax node)
'    at Microsoft.CodeAnalysis.CSharp.Syntax.ExpressionStatementSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
'    at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.Visit(SyntaxNode node)
'    at ICSharpCode.CodeConverter.VB.CommentConvertingMethodBodyVisitor.ConvertWithTrivia(SyntaxNode node)
'    at ICSharpCode.CodeConverter.VB.CommentConvertingMethodBodyVisitor.DefaultVisit(SyntaxNode node)
' 
' Input: 
'                     n /= 2;

' 
                End While

                result = Convert.ToString(n) & result
                Console.WriteLine("Binary: {0}", result)
            End If
        Loop While answer <> "end"
    End Sub
End Class