Catalogue generation fails

[JoonieB]

I know I must have done something stupid because I've never had a problem with catalog generation before.

"Failed: Generate catalogue"

I've tried both Mobi & EPUB, reduced the number of titles to 2, and selected only "Titles" as Ebook option but still failing.

CSV still works ok.

Can someone guide me please?

Spoiler:

Generate catalogue
Sections: Authors
Catalog_EPUB_MOBI(): Generating mobi for generic_eink in GUI environment
connected_device: 'None'
book count: 2
opts:
authorClip: 100
catalog_title: u'Black & Carmichael'
connected_kindle: False
descriptionClip: 380
exclude_book_marker: u':'
exclude_genre: u'\\[.+\\]'
exclude_tags: u'~,Catalogue'
header_note_source_field: ''
merge_comments: '::True'
output_profile: 'generic_eink'
read_book_marker: u'tag:+'
search_text: None
sort_by: None
sort_descriptions_by_author: True
sync: False
thumb_width: '1.00'
wishlist_tag: u'Wishlist'
Begin catalog source generation
DPI = 168; thumbnail dimensions: 168 x 224
Completed catalog source generation

InputFormatPlugin: HTML Input running
on c:\users\owner\appdata\local\temp\calibre_0.8.30_t mp_oa6w_t\l2tda3_epub_mobi_catalog\Catalog.opf
Parsing all content...
OPF contains invalid tours section
Python function terminated unexpectedly
xmlParseEntityRef: no name, line 5, column 11 (Error Code: 1)
Traceback (most recent call last):
File "site.py", line 132, in main
File "site.py", line 109, in run_entry_point
File "site-packages\calibre\utils\ipc\worker.py", line 187, in main
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 68, in gui_catalog
File "site-packages\calibre\library\catalog.py", line 5172, in run
File "site-packages\calibre\ebooks\conversion\plumber.py", line 959, in run
File "site-packages\calibre\customize\conversion.py", line 204, in __call__
File "site-packages\calibre\ebooks\html\input.py", line 301, in convert
File "site-packages\calibre\ebooks\conversion\plumber.py", line 1114, in create_oebbook
File "site-packages\calibre\ebooks\oeb\reader.py", line 70, in __call__
File "site-packages\calibre\ebooks\oeb\reader.py", line 120, in _read_opf
File "lxml.etree.pyx", line 2743, in lxml.etree.fromstring (src/lxml/lxml.etree.c:52665)
File "parser.pxi", line 1573, in lxml.etree._parseMemoryDocument (src/lxml/lxml.etree.c:79932)
File "parser.pxi", line 1445, in lxml.etree._parseDoc (src/lxml/lxml.etree.c:78709)
File "parser.pxi", line 920, in lxml.etree._BaseParser._parseUnicodeDoc (src/lxml/lxml.etree.c:75083)
File "parser.pxi", line 564, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:71739)
File "parser.pxi", line 645, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:72614)
File "parser.pxi", line 585, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:71955)
lxml.etree.XMLSyntaxError: xmlParseEntityRef: no name, line 5, column 11

[kovidgoyal]

Attach the metadata.db from your calibre library.