[OMEN]

Firstly,
THANK YOU, this an amazing piece of software.


Secondly,
While converting PDFs to MOBI, 90% of the time I get this error.

ERROR: Conversion Error: <b>Failed</b>: Convert book 1 of 1 (Phishing Exposed (Syngress, 2005))

Convert book 1 of 1 (Phishing Exposed (Syngress, 2005))
Resolved conversion options
calibre version: 0.7.20
{'asciiize': False,
 'author_sort': None,
 'authors': None,
 'base_font_size': 0.0,
 'book_producer': None,
 'change_justification': u'original',
 'chapter': u"//*[((name()='h1' or name()='h2') and re:test(., 'chapter|book|section|part|prologue|epilogue\\s+', 'i')) or @class = 'chapter']",
 'chapter_mark': u'pagebreak',
 'comments': None,
 'cover': None,
 'debug_pipeline': None,
 'disable_font_rescaling': False,
 'dont_compress': False,
 'extra_css': None,
 'font_size_mapping': None,
 'footer_regex': u'(?i)(?<=<hr>)((\\s*<a name=\\d+></a>((<img.+?>)*<br>\\s*)?\\d+<br>\\s*.*?\\s*)|(\\s*<a name=\\d+></a>((<img.+?>)*<br>\\s*)?.*?<br>\\s*\\d+))(?=<br>)',
 'header_regex': u'(?i)(?<=<hr>)((\\s*<a name=\\d+></a>((<img.+?>)*<br>\\s*)?\\d+<br>\\s*.*?\\s*)|(\\s*<a name=\\d+></a>((<img.+?>)*<br>\\s*)?.*?<br>\\s*\\d+))(?=<br>)',
 'html_unwrap_factor': 0.40000000000000002,
 'input_encoding': None,
 'input_profile': <calibre.customize.profiles.InputProfile object at 0x046DC090>,
 'insert_blank_line': False,
 'insert_metadata': False,
 'isbn': None,
 'keep_ligatures': False,
 'language': None,
 'level1_toc': None,
 'level2_toc': None,
 'level3_toc': None,
 'line_height': 0.0,
 'linearize_tables': True,
 'margin_bottom': 5.0,
 'margin_left': 5.0,
 'margin_right': 5.0,
 'margin_top': 5.0,
 'max_toc_links': 50,
 'new_pdf_engine': False,
 'no_chapters_in_toc': False,
 'no_images': False,
 'no_inline_navbars': True,
 'no_inline_toc': False,
 'output_profile': <calibre.customize.profiles.KindleOutput object at 0x046DC370>,
 'page_breaks_before': u"//*[name()='h1' or name()='h2']",
 'personal_doc': u'[PDOC]',
 'prefer_author_sort': False,
 'prefer_metadata_cover': False,
 'preprocess_html': False,
 'pretty_print': False,
 'pubdate': None,
 'publisher': None,
 'rating': None,
 'read_metadata_from_opf': 'd:\\temp\\calibre_0.7.20_tmp_hqrued\\calibre_0.7.20_k3np7v.opf',
 'remove_first_image': False,
 'remove_footer': True,
 'remove_header': True,
 'remove_paragraph_spacing': True,
 'remove_paragraph_spacing_indent_size': 1.5,
 'rescale_images': False,
 'series': None,
 'series_index': None,
 'smarten_punctuation': False,
 'tags': None,
 'timestamp': None,
 'title': None,
 'title_sort': None,
 'toc_filter': None,
 'toc_threshold': 6,
 'toc_title': None,
 'unwrap_factor': 0.45000000000000001,
 'use_auto_toc': True,
 'verbose': 2}
InputFormatPlugin: PDF Input running
on E:\users\OMEN\Documents\BOOKS\calibre\Unknown\Phishing Exposed (Syngress, 2005) (43)\Phishing Exposed (Syngress, 2005) - Unknown.pdf
Converting file to html...
pdftohtml log:

Retrieving document metadata...
Generating manifest...
Rendering manifest...
Parsing all content...
Parsing index.html ...
Failed to parse content in index.html
Traceback (most recent call last):
  File "site-packages\calibre\ebooks\oeb\reader.py", line 159, in _manifest_prune_invalid
  File "site-packages\calibre\ebooks\oeb\base.py", line 1060, in fget
  File "site-packages\calibre\ebooks\oeb\base.py", line 789, in _parse_xhtml
  File "site-packages\calibre\ebooks\conversion\preprocess.py", line 431, in __call__
  File "site-packages\calibre\ebooks\conversion\preprocess.py", line 152, in __call__
  File "site-packages\calibre\ebooks\conversion\preprocess.py", line 133, in dehyphenate
  File "re.py", line 190, in compile
  File "re.py", line 245, in _compile
error: unbalanced parenthesis

Spine item 'id1' not found
Python function terminated unexpectedly
  Spine is empty (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 24, in gui_convert
  File "site-packages\calibre\ebooks\conversion\plumber.py", line 841, in run
  File "site-packages\calibre\ebooks\conversion\plumber.py", line 968, in create_oebbook
  File "site-packages\calibre\ebooks\oeb\reader.py", line 72, in __call__
  File "site-packages\calibre\ebooks\oeb\reader.py", line 594, in _all_from_opf
  File "site-packages\calibre\ebooks\oeb\reader.py", line 289, in _spine_from_opf
calibre.ebooks.oeb.base.OEBError: Spine is empty

AFAIK >> this bug >> http://bugs.calibre-ebook.com/ticket/6975

Windows 7 Pro,
Calibre 0.7.20