[Sydney's Mom]

Here is the error message I get with the latest installment of Calibre:

Generate catalog
Catalog_EPUB_MOBI:run
path_to_output: c:\users\debra\appdata\local\temp\calibre_0.6.36_q hvwxu_catalog_out.mobi
Output format: mobi
Book count: 989
opts:
basename: Catalog
catalog_title: My Books
creator: calibre
descriptionClip: 250
exclude_genre: \[[\w ]*\]
exclude_tags: ~
fmt: mobi
log: <calibre.utils.logging.Log object at 0x04DBE470>
note_tag: *
output_profile: kindle
plugin_path: <class 'calibre.library.catalog.EPUB_MOBI'>
read_tag: +
search_text: None
sort_by: None
verbose: True
CatalogBuilder(): Generating mobi for kindle
0.00% fetchBooksByTitle()
0.08% fetchBooksByAuthor()
Warning: multiple entries for Author 'Donna Kauffman' with differing Author Sort metadata:
'Kauffman, Donna' != 'Kauffman, Donn'
Warning: multiple entries for Author 'Stella &amp; Audra Price' with differing Author Sort metadata:
'Price,Stella & Audra' != 'Price, Stella & Audra'
Warning: multiple entries for Author 'L. J. Smith' with differing Author Sort metadata:
'Smith, L.J.' != 'Smith, L. J.'
0.15% generateHTMLDescriptions()
0.23% generateHTMLByTitle()
0.31% generateHTMLByAuthor()
0.38% generateHTMLByTags()
0.46% generateOPF()
0.54% generateNCXHeader()
0.62% generateNCXDescriptions()
0.69% generateNCXByTitle()
0.77% generateNCXByAuthor()
0.85% generateNCXByTags()
0.92% writeNCX()
InputFormatPlugin: HTML Input running
on c:\users\debra\appdata\local\temp\calibre_0.6.36_w uhmh4_epub_mobi_catalog\Catalog.opf
Parsing all content...
Duplicate manifest entry for 'content/GenreAlternativehistoriesFiction.html'
Duplicate manifest entry for 'content/GenreAmericanBiography.html'
Duplicate manifest entry for 'content/GenreCedarCoveWashImaginaryplace.html'
Duplicate manifest id 'genrecrimemystery'
Duplicate manifest entry for 'content/GenreDC.html'
Duplicate manifest entry for 'content/GenreDepressedpersonsSuicidalbehaviorUnitedStates. html'
Duplicate manifest entry for 'content/GenreDepressedpersonsUnitedStatesBiography.html'
Duplicate manifest id 'genrefamilyrelationships'
Duplicate manifest entry for 'content/GenreFiancees.html'
Duplicate manifest entry for 'content/GenreFrance.html'
Duplicate manifest entry for 'content/GenreHumorousfiction.html'
Duplicate manifest entry for 'content/GenreLiteratureClassics.html'
Duplicate manifest entry for 'content/GenreMagic.html'
Duplicate manifest entry for 'content/GenreNavy.html'
Duplicate manifest entry for 'content/GenreNewYorkNY.html'
Duplicate manifest entry for 'content/GenreRomanceGothic.html'
Duplicate manifest entry for 'content/GenreRomanceHistorical.html'
Duplicate manifest entry for 'content/GenreRomanceRegency.html'
Duplicate manifest entry for 'content/GenreSanFranciscoCalif.html'
Duplicate manifest entry for 'content/GenreScienceFictionFantasy.html'
Duplicate manifest entry for 'content/GenreSelfmanagementPsychology.html'
Duplicate manifest entry for 'content/GenreUnitedStates.html'
Duplicate manifest entry for 'content/GenreYucatanPeninsula.html'
Duplicate manifest entry for 'content/Genreetc.html'
Initial parse failed:
Parsing file 'content/book_1010.html' as HTML
Forcing content/book_1010.html into XHTML namespace
Initial parse failed:
Parsing file 'content/book_1139.html' as HTML
Forcing content/book_1139.html into XHTML namespace
Initial parse failed:
Parsing file 'content/book_880.html' as HTML
Forcing content/book_880.html into XHTML namespace
Initial parse failed:
Parsing file 'content/book_1090.html' as HTML
Forcing content/book_1090.html into XHTML namespace
Stripping comments and meta tags from content/book_1090.html
Failed to parse content in content/book_1090.html
Initial parse failed:
Parsing file 'content/book_1099.html' as HTML
Forcing content/book_1099.html into XHTML namespace
Initial parse failed:
Parsing file 'content/book_1120.html' as HTML
Forcing content/book_1120.html into XHTML namespace
Stripping comments and meta tags from content/book_1120.html
Failed to parse content in content/book_1120.html
Initial parse failed:
Parsing file 'content/book_1115.html' as HTML
Forcing content/book_1115.html into XHTML namespace
Initial parse failed:
Parsing file 'content/book_1005.html' as HTML
Forcing content/book_1005.html into XHTML namespace
Stripping comments and meta tags from content/book_1005.html
Failed to parse content in content/book_1005.html
Initial parse failed:
Parsing file 'content/book_1232.html' as HTML
Forcing content/book_1232.html into XHTML namespace
Initial parse failed:
Parsing file 'content/book_1258.html' as HTML
Forcing content/book_1258.html into XHTML namespace
Referenced file 'content/book_1005.html' not in manifest
Referenced file 'content/book_1120.html' not in manifest
Referenced file 'content/book_1090.html' not in manifest
Initial parse failed:
Parsing file 'content/book_1005.html' as HTML
Forcing content/book_1005.html into XHTML namespace
Stripping comments and meta tags from content/book_1005.html
Python function terminated unexpectedly
xmlParsePITarget: invalid name prefix 'xml', line 75, column 31 (Error Code: 1)
Traceback (most recent call last):
File "site.py", line 103, in main
File "site.py", line 85, in run_entry_point
File "site-packages\calibre\utils\ipc\worker.py", line 99, in main
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 59, in gui_catalog
File "site-packages\calibre\library\catalog.py", line 2413, in run
File "site-packages\calibre\ebooks\conversion\plumber.py", line 745, in run
File "site-packages\calibre\customize\conversion.py", line 211, in __call__
File "site-packages\calibre\ebooks\html\input.py", line 291, in convert
File "site-packages\calibre\ebooks\conversion\plumber.py", line 877, in create_oebbook
File "site-packages\calibre\ebooks\oeb\reader.py", line 72, in __call__
File "site-packages\calibre\ebooks\oeb\reader.py", line 588, in _all_from_opf
File "site-packages\calibre\ebooks\oeb\reader.py", line 243, in _manifest_from_opf
File "site-packages\calibre\ebooks\oeb\reader.py", line 176, in _manifest_add_missing
File "site-packages\calibre\ebooks\oeb\base.py", line 1014, in fget
File "site-packages\calibre\ebooks\oeb\base.py", line 871, in _parse_xhtml
File "lxml.etree.pyx", line 2538, in lxml.etree.fromstring (src/lxml/lxml.etree.c:48266)
File "parser.pxi", line 1536, in lxml.etree._parseMemoryDocument (src/lxml/lxml.etree.c:71653)
File "parser.pxi", line 1408, in lxml.etree._parseDoc (src/lxml/lxml.etree.c:70449)
File "parser.pxi", line 898, in lxml.etree._BaseParser._parseUnicodeDoc (src/lxml/lxml.etree.c:67144)
File "parser.pxi", line 539, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:63820)
File "parser.pxi", line 625, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:64741)
File "parser.pxi", line 565, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:64084)
lxml.etree.XMLSyntaxError: xmlParsePITarget: invalid name prefix 'xml', line 75, column 31

I deleted theactual book names, and left the error messages. I ran it twice, to make sure it wasn't a fluke. The first time it failed after 3:42. The second time it failed at 3:21. Any ideas?

Thanks, Debra