[JeffElkins]

any2epub Between_Planets.mobi
Exploding MOBI file: Between_Planets.mobi
Creating EPUB file...
Parsing tmp/calibre_0.4.86_gmFzGz_any2epub2/Between Planets.html
Traceback (most recent call last):
File "<string>", line 154, in <module>
File "<string>", line 150, in main
File "<string>", line 125, in any2epub
File "library.pyz/contextlib", line 33, in __exit__
File "library.pyz/contextlib", line 118, in nested
File "<string>", line 125, in any2epub
File "library.pyz/calibre.ebooks.epub.from_html", line 111, in convert
File "library.pyz/calibre.ebooks.epub.from_html", line 77, in parse_content
File "library.pyz/calibre.ebooks.html", line 459, in save
File "lxml.etree.pyx", line 2279, in lxml.etree.SubElement (src/lxml/lxml.etree.c:20487)
TypeError: Argument '_parent' has incorrect type (expected lxml.etree._Element, got NoneType)

Here's an error...