Parsing a string using the Lucene parser

How can you use a parser to "parse" a string and return the parsed string?

I am trying to find below code found on this site, but it throws ArgumentException

- "This attribute of the Internet does not have an attribute Lucene.Net.Analysis.Tokenattributes.TermAttribute"

     public static string AnalyseString(Analyzer analyser, string stringToAnalyse)
    {

        MemoryStream ms = new MemoryStream();
        StreamWriter sw = new StreamWriter(ms);
        sw.Write(stringToAnalyse);
        sw.Flush();
        ms.Seek(0, SeekOrigin.Begin);
        StreamReader sr = new StreamReader(ms);

        TokenStream tokenStreamResult = analyser.TokenStream(null,sr);
        StringBuilder sb = new StringBuilder();
        //Lucene.Net.Analysis.Token t = new Lucene.Net.Analysis.Token();

        while (tokenStreamResult.IncrementToken())
        {
            var attrib = tokenStreamResult.GetAttribute<TermAttribute>();

            string t2 = tokenStreamResult.GetAttribute<TermAttribute>().Term;

            sb.Append(t2 + " ");


        }
        return sb.ToString();
    }

      

        
        
        
      

    

I am using the latest version of Lucene.Net (3.0.3.0) and I am testing with SimpleAnalyzer