Problems when index .chm files

Example1:

Error parsing: http://localhost/mydocs/Programacion/Web/Ajax/Ajax.Hacks.Tips.and.Tools.for.Creating.Responsive.Web.Sites.Mar.2006.chm: org.apache.nutch.parse.ParseException: parser not found for contentType=chemical/x-chemdraw url=http://localhost/mydocs/Programacion/Web/Ajax/Ajax.Hacks.Tips.and.Tools.for.Creating.Responsive.Web.Sites.Mar.2006.chm
        at org.apache.nutch.parse.ParseUtil.parse(ParseUtil.java:74)
        at org.apache.nutch.fetcher.Fetcher$FetcherThread.output(Fetcher.java:766)
        at org.apache.nutch.fetcher.Fetcher$FetcherThread.run(Fetcher.java:552)

Example2:

Error parsing: http://localhost/mydocs/Programacion/Estructura%20de%20Datos/Uml/Project%20Management%20Methodologies%20(2004)%20(Wiley).chm: org.apache.nutch.parse.ParseException: parser not found for contentType=chemical/x-chemdraw url=http://localhost/mydocs/Programacion/Estructura%20de%20Datos/Uml/Project%20Management%20Methodologies%20(2004)%20(Wiley).chm
        at org.apache.nutch.parse.ParseUtil.parse(ParseUtil.java:74)
        at org.apache.nutch.fetcher.Fetcher$FetcherThread.output(Fetcher.java:766)
        at org.apache.nutch.fetcher.Fetcher$FetcherThread.run(Fetcher.java:552)

and other sames errors...

Any solution ??