Traceback (most recent call last):
  File "/usr/bin/chm2pdf", line 1108, in <module>
    main(sys.argv)
  File "/usr/bin/chm2pdf", line 1102, in main
    convert_to_pdf(cfile, filename, outputfilename, options)
  File "/usr/bin/chm2pdf", line 387, in convert_to_pdf
    correct_file(re.sub('\\\\ ', ' ', page_filename), htmlout_filename, html_list, objective_urls, options)
  File "/usr/bin/chm2pdf", line 137, in correct_file
    from BeautifulSoup import BeautifulSoup, Tag
ImportError: No module named BeautifulSoup