Spine is empty?

artbatista · 01-05-2010, 04:05 PM

I am attempting to convert an HTML file to EPUB and fails with this error:

calibre.ebooks.oeb.base.OEBError: Spine is empty

Code:

Convert book 1 of 10 (System Corruption)
Processing archive...
Resolved conversion options
{'asciiize': False,
 'author_sort': None,
 'authors': None,
 'base_font_size': 0.0,
 'book_producer': None,
 'breadth_first': False,
 'chapter': u"//*[name()='h1' or name()='h2' or name()='h3' or name()='h4']",
 'chapter_mark': u'pagebreak',
 'comments': None,
 'cover': 'c:\\users\\arturo\\appdata\\local\\temp\\calibre_0.6.31_5tzyps.jpeg',
 'debug_pipeline': None,
 'disable_font_rescaling': False,
 'dont_justify': False,
 'dont_package': False,
 'dont_split_on_page_breaks': False,
 'extra_css': None,
 'extract_to': None,
 'flow_size': 260,
 '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>)',
 'input_encoding': None,
 'input_profile': <calibre.customize.profiles.InputProfile object at 0x03B38810>,
 'insert_blank_line': False,
 'insert_metadata': False,
 'isbn': None,
 'language': None,
 'level1_toc': None,
 'level2_toc': None,
 'level3_toc': None,
 'line_height': 0.0,
 'linearize_tables': False,
 'margin_bottom': 5.0,
 'margin_left': 5.0,
 'margin_right': 5.0,
 'margin_top': 5.0,
 'max_levels': 5,
 'max_toc_links': 50,
 'no_chapters_in_toc': False,
 'no_default_epub_cover': False,
 'no_inline_navbars': False,
 'output_profile': <calibre.customize.profiles.OutputProfile object at 0x03B389D0>,
 'page_breaks_before': u'/',
 'prefer_metadata_cover': False,
 'preprocess_html': False,
 'pretty_print': True,
 'publisher': None,
 'rating': None,
 'read_metadata_from_opf': 'c:\\users\\arturo\\appdata\\local\\temp\\calibre_0.6.31_lj4chs.opf',
 'remove_first_image': False,
 'remove_footer': False,
 'remove_header': False,
 'remove_paragraph_spacing': False,
 'remove_paragraph_spacing_indent_size': 1.5,
 'series': None,
 'series_index': None,
 'tags': None,
 'title': None,
 'title_sort': None,
 'toc_filter': None,
 'toc_threshold': 6,
 'unwrap_factor': 0.0,
 'use_auto_toc': False,
 'verbose': 2}
InputFormatPlugin: HTML Input running
on c:\users\arturo\appdata\local\temp\calibre_0.6.31_rnlgyx_plumber\content.opf
Parsing all content...
Manifest item 'toc.ncx' 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 90, in main
  File "site-packages\calibre\gui2\convert\gui_conversion.py", line 21, in gui_convert
  File "site-packages\calibre\ebooks\conversion\plumber.py", line 736, in run
  File "site-packages\calibre\customize\conversion.py", line 208, in __call__
  File "site-packages\calibre\ebooks\html\input.py", line 291, in convert
  File "site-packages\calibre\ebooks\conversion\plumber.py", line 866, in create_oebbook
  File "site-packages\calibre\ebooks\oeb\reader.py", line 72, in __call__
  File "site-packages\calibre\ebooks\oeb\reader.py", line 589, 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

Any ideas on how to resolve this?

Thank you in advance.

Art

kovidgoyal · 01-05-2010, 07:49 PM

check to make sure your html file has an opening <html> tag

leshalfhill0516 · 01-12-2010, 09:48 PM

Quote:

Originally Posted by kovidgoyal

check to make sure your html file has an opening <html> tag

Hi. I have the same problem. I'm using Calibre Version 6.33. I want to convert an html file to ePub, keeping the html as simple as possible. I get the following error log when trying the conversion.

ERROR: Conversion Error: Failed: Convert book 1 of 1 (ADV3)
Convert book 1 of 1 (ADV3)
Processing archive...
Resolved conversion options
{'asciiize': False,
'author_sort': None,
'authors': None,
'base_font_size': 0.0,
'book_producer': None,
'breadth_first': False,
'chapter': u"//*[((name()='h1' or name()='h2') and re:test(.,
'chapter|book|section|part\\s+', 'i')) or @class = 'chapter']",
'chapter_mark': u'pagebreak',
'comments': None,
'cover': None,
'debug_pipeline': None,
'disable_font_rescaling': False,
'dont_justify': False,
'dont_package': False,
'dont_split_on_page_breaks': True,
'extra_css': None,
'extract_to': None,
'flow_size': 260,
'font_size_mapping': None,
'footer_regex': u'(?i)(?<=<hr>)((\\s*<a name=\\d+></a>((<img.+?>)* \\s*)?
\\d+ \\s*.*?\\s*)|(\\s*<a name=\\d+></a>((<img.+?>)* \\s*)?.*? \\s*\\d+))(?
= )',
'header_regex': u'(?i)(?<=<hr>)((\\s*<a name=\\d+></a>((<img.+?>)* \\s*)?
\\d+ \\s*.*?\\s*)|(\\s*<a name=\\d+></a>((<img.+?>)* \\s*)?.*? \\s*\\d+))(?
= )',
'input_encoding': None,
'input_profile': <calibre.customize.profiles.InputProfile object at 0x04CFD750>,
'insert_blank_line': False,
'insert_metadata': False,
'isbn': None,
'language': None,
'level1_toc': None,
'level2_toc': None,
'level3_toc': None,
'line_height': 0.0,
'linearize_tables': False,
'margin_bottom': 5.0,
'margin_left': 5.0,
'margin_right': 5.0,
'margin_top': 5.0,
'max_levels': 5,
'max_toc_links': 50,
'no_chapters_in_toc': True,
'no_default_epub_cover': False,
'no_inline_navbars': False,
'output_profile': <calibre.customize.profiles.OutputProfile object at 0x04CFD910>,
'page_breaks_before': u"//*[name()='h1' or name()='h2']",
'prefer_metadata_cover': False,
'preprocess_html': False,
'pretty_print': True,
'publisher': None,
'rating': None,
'read_metadata_from_opf':
'c:\\users\\les\\appdata\\local\\temp\\calibre_0.6 .33_jrx4uf.opf',
'remove_first_image': False,
'remove_footer': False,
'remove_header': False,
'remove_paragraph_spacing': False,
'remove_paragraph_spacing_indent_size': 1.5,
'series': None,
'series_index': None,
'tags': None,
'title': None,
'title_sort': None,
'toc_filter': None,
'toc_threshold': 6,
'unwrap_factor': 0.0,
'use_auto_toc': False,
'verbose': 2}
InputFormatPlugin: HTML Input running
on c:\users\les\appdata\local\temp\calibre_0.6.33_xe7 amr_plumber\content.opf
Parsing all content...
Manifest item 'toc.ncx' 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 96, in main
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 21, in gui_convert
File "site-packages\calibre\ebooks\conversion\plumber.py", line 745, in run
File "site-packages\calibre\customize\conversion.py", line 208, 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 589, 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

Following is a sample of the html I'm using. It displays just fine when opened in a browser:

<html>
<body>
<h3>AGAIN, DANGEROUS VISIONS</h3>

Harlan Ellison 

INTRODUCTION 

An Assault of New Dreamers 

Dumas wrote The Three Musketeers in 1844.
Popular demand compelled him to write two sequels, Vingt Ans Apres in 1845 and Le* Vicomte de Bragelonne in 1848. Arthur Conan Doyle grew tired of Sherlock Holmes and ended his career as a criminologist (as well as that of Professor Moriarty as a master criminal) with a tumble over the Reichenbach Falls in "The Final Problem." The public would have none of it. Doyle, pressed to the wall, revived his immortal sleuth three years later with "The Adventure of the Empty House." In
1959 Evan S. Connell, Jr. wrote Mrs. Bridge and it became an instant classic of contemporary fiction. No sequel was possible, but the name became a literary catchphrase, and in 1969 Mr. Connell wrote Mr. Bridge. The creators of Captain America killed off that star-spangled warrior
for Democracy and the American Way near the end of World War II. In the early Sixties the Sub-Mariner, Prince Namor of Atlantis, found Cap floating around perfectly preserved in a block of ice, and revived him. Isaac Asimov has had to suffer sequelization many times. No one will let him stop telling stories of Dr. Susan Calvin and her U.S. Robots and Mechanical Men, Inc.; stories of the Foundation; stories of Lije Bailey and R. Daneel Olivaw. Ike is resigned. They have lives of their own. I did not want to edit another Dangerous Visions. 
</body>
</html>

Please, any suggestions? I've tried input files of TXT and RTF, but html seems to work as the best format for my preferred reader (iPhone with Stanza app)

Thanks

kovidgoyal · 01-12-2010, 10:01 PM

That html converts fine for me. How exctly are you converting it?

leshalfhill0516 · 01-12-2010, 10:13 PM

Quote:

Originally Posted by kovidgoyal

That html converts fine for me. How exctly are you converting it?

I use "Add Books" to import the file, have conversion set to ePub, highlight title, choose "Convert E-Books". I have no cover image, "Look and Feel" boxes all blank (ditto on "Structure Detection"), "Page Setup" set to "Default Output Profile", TOC has "Do not add detected chapters" checked, "EPUB Output" has "Do not split on page breaks" checked.

kovidgoyal · 01-12-2010, 10:48 PM

Try cleaning out and re-installing calibre. See the first entry here:

http://calibre-ebook.com/user_manual...ing-on-windows

leshalfhill0516 · 01-12-2010, 11:24 PM

Quote:

Originally Posted by kovidgoyal

Try cleaning out and re-installing calibre. See the first entry here:

http://calibre-ebook.com/user_manual...ing-on-windows

Uninstalled per your instructions, completed reinstall, tried again, same problem/error.

kovidgoyal · 01-12-2010, 11:35 PM

What's the name of the html file on your system?

leshalfhill0516 · 01-12-2010, 11:50 PM

Quote:

Originally Posted by kovidgoyal

What's the name of the html file on your system?

ADV3.htm

kovidgoyal · 01-13-2010, 12:53 PM

Tried it on windows as well, with that file name and it still works for me, so I really have no idea why it's not working for you

leshalfhill0516 · 01-13-2010, 03:02 PM

Thanks for trying, and thanks for a great open-source product. It really is a great piece of software.

brewt · 01-13-2010, 05:26 PM

I've found that if my file(s) aren't in utf-8 encoding, I get the error.
When I re-save them in utf-8, that takes care of it.

-bjc

Guido Henkel · 02-04-2010, 09:04 PM

I am having the same problem, using Calibre on the Mac. Every time I try to convert an HTML file into ANY ebook format I get a spine is empty error. I have my HTML file in UTF-8 but that didn't help.

Any idea what's going on? I'd be happy to provide you with the original HTML file, kovidgoyal, if that will help.

Thanks,
Guido

ERROR: Conversion Error: Failed: Convert book 1 of 1 (DemonsNight)

Convert book 1 of 1 (DemonsNight)
Processing archive...
Resolved conversion options
{'asciiize': False,
'author_sort': None,
'authors': None,
'base_font_size': 0.0,
'book_producer': None,
'breadth_first': False,
'chapter': u"//*[((name()='h1' or name()='h2') and re:test(., 'chapter|book|section|part\\s+', 'i')) or @class = 'chapter']",
'chapter_mark': u'pagebreak',
'comments': None,
'cover': None,
'debug_pipeline': None,
'disable_font_rescaling': False,
'dont_justify': False,
'dont_package': False,
'extra_css': None,
'font_size_mapping': None,
'footer_regex': u'(?i)(?<=<hr>)((\\s*<a name=\\d+></a>((<img.+?>)* \\s*)?\\d+ \\s*.*?\\s*)|(\\s* <a name=\\d+></a>((<img.+?>)* \\s*)?.*? \\s*\\d+))(?= )' ,
'header_regex': u'(?i)(?<=<hr>)((\\s*<a name=\\d+></a>((<img.+?>)* \\s*)?\\d+ \\s*.*?\\s*)|(\\s* <a name=\\d+></a>((<img.+?>)* \\s*)?.*? \\s*\\d+))(?= )' ,
'input_encoding': None,
'input_profile': <calibre.customize.profiles.InputProfile object at 0x63f0b50>,
'insert_blank_line': False,
'insert_metadata': False,
'isbn': None,
'language': None,
'level1_toc': None,
'level2_toc': None,
'level3_toc': None,
'line_height': 0.0,
'linearize_tables': False,
'margin_bottom': 5.0,
'margin_left': 5.0,
'margin_right': 5.0,
'margin_top': 5.0,
'max_levels': 5,
'max_toc_links': 50,
'no_chapters_in_toc': False,
'no_inline_navbars': False,
'output_profile': <calibre.customize.profiles.OutputProfile object at 0x63f0d10>,
'page_breaks_before': u"//*[name()='h1' or name()='h2']",
'prefer_metadata_cover': False,
'preprocess_html': False,
'pretty_print': False,
'publisher': None,
'rating': None,
'read_metadata_from_opf': '/var/folders/rX/rXWGE5kyEK0nkF0NIl6GnU+++TI/-Tmp-/calibre_0.6.37_SAlIls.opf',
'remove_first_image': False,
'remove_footer': False,
'remove_header': False,
'remove_paragraph_spacing': False,
'remove_paragraph_spacing_indent_size': 1.5,
'series': None,
'series_index': None,
'tags': None,
'title': None,
'title_sort': None,
'toc_filter': None,
'toc_threshold': 6,
'unwrap_factor': 0.0,
'use_auto_toc': False,
'verbose': 2}
Python function terminated unexpectedly: Spine is empty
InputFormatPlugin: HTML Input running
on /var/folders/rX/rXWGE5kyEK0nkF0NIl6GnU+++TI/-Tmp-/calibre_0.6.37_c0GICZ_plumber/content.opf
Parsing all content...
Manifest item 'toc.ncx' not found
Traceback (most recent call last):
File "/Applications/calibre.app/Contents/Resources/Python/lib/python2.6/site.py", line 147, in main
return run_entry_point()
File "/Applications/calibre.app/Contents/Resources/Python/lib/python2.6/site.py", line 116, in run_entry_point
return getattr(pmod, func)()
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 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 589, 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

kovidgoyal · 02-05-2010, 12:30 PM

open a ticket and attach the file.

Guido Henkel · 02-05-2010, 01:57 PM

Kovid,

I have just created the ticket and attached a HTML file that generates the error.
Thanks for looking into this.

Guido

01-13-2010, 03:02 PM	#11
leshalfhill0516 Junior Member Posts: 5 Karma: 10 Join Date: Jan 2010 Device: iPhone/Stanza	OK Thanks for trying, and thanks for a great open-source product. It really is a great piece of software.

02-04-2010, 09:04 PM	#13
Guido Henkel Enthusiast Posts: 37 Karma: 10 Join Date: Feb 2010 Device: mobi, epub, lit	I am having the same problem, using Calibre on the Mac. Every time I try to convert an HTML file into ANY ebook format I get a spine is empty error. I have my HTML file in UTF-8 but that didn't help. Any idea what's going on? I'd be happy to provide you with the original HTML file, kovidgoyal, if that will help. Thanks, Guido ERROR: Conversion Error: <b>Failed</b>: Convert book 1 of 1 (DemonsNight) Convert book 1 of 1 (DemonsNight) Processing archive... Resolved conversion options {'asciiize': False, 'author_sort': None, 'authors': None, 'base_font_size': 0.0, 'book_producer': None, 'breadth_first': False, 'chapter': u"//[((name()='h1' or name()='h2') and re:test(., 'chapter\|book\|section\|part\\s+', 'i')) or @class = 'chapter']", 'chapter_mark': u'pagebreak', 'comments': None, 'cover': None, 'debug_pipeline': None, 'disable_font_rescaling': False, 'dont_justify': False, 'dont_package': 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>)' , 'input_encoding': None, 'input_profile': <calibre.customize.profiles.InputProfile object at 0x63f0b50>, 'insert_blank_line': False, 'insert_metadata': False, 'isbn': None, 'language': None, 'level1_toc': None, 'level2_toc': None, 'level3_toc': None, 'line_height': 0.0, 'linearize_tables': False, 'margin_bottom': 5.0, 'margin_left': 5.0, 'margin_right': 5.0, 'margin_top': 5.0, 'max_levels': 5, 'max_toc_links': 50, 'no_chapters_in_toc': False, 'no_inline_navbars': False, 'output_profile': <calibre.customize.profiles.OutputProfile object at 0x63f0d10>, 'page_breaks_before': u"//*[name()='h1' or name()='h2']", 'prefer_metadata_cover': False, 'preprocess_html': False, 'pretty_print': False, 'publisher': None, 'rating': None, 'read_metadata_from_opf': '/var/folders/rX/rXWGE5kyEK0nkF0NIl6GnU+++TI/-Tmp-/calibre_0.6.37_SAlIls.opf', 'remove_first_image': False, 'remove_footer': False, 'remove_header': False, 'remove_paragraph_spacing': False, 'remove_paragraph_spacing_indent_size': 1.5, 'series': None, 'series_index': None, 'tags': None, 'title': None, 'title_sort': None, 'toc_filter': None, 'toc_threshold': 6, 'unwrap_factor': 0.0, 'use_auto_toc': False, 'verbose': 2} Python function terminated unexpectedly: Spine is empty InputFormatPlugin: HTML Input running on /var/folders/rX/rXWGE5kyEK0nkF0NIl6GnU+++TI/-Tmp-/calibre_0.6.37_c0GICZ_plumber/content.opf Parsing all content... Manifest item 'toc.ncx' not found Traceback (most recent call last): File "/Applications/calibre.app/Contents/Resources/Python/lib/python2.6/site.py", line 147, in main return run_entry_point() File "/Applications/calibre.app/Contents/Resources/Python/lib/python2.6/site.py", line 116, in run_entry_point return getattr(pmod, func)() 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 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 589, 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

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01-05-2010, 07:49 PM	#2
kovidgoyal creator of calibre Posts: 44,512 Karma: 24495778 Join Date: Oct 2006 Location: Mumbai, India Device: Various	check to make sure your html file has an opening <html> tag

01-12-2010, 10:01 PM	#4
kovidgoyal creator of calibre Posts: 44,512 Karma: 24495778 Join Date: Oct 2006 Location: Mumbai, India Device: Various	That html converts fine for me. How exctly are you converting it?

01-12-2010, 10:48 PM	#6
kovidgoyal creator of calibre Posts: 44,512 Karma: 24495778 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Try cleaning out and re-installing calibre. See the first entry here: http://calibre-ebook.com/user_manual...ing-on-windows

01-12-2010, 11:35 PM	#8
kovidgoyal creator of calibre Posts: 44,512 Karma: 24495778 Join Date: Oct 2006 Location: Mumbai, India Device: Various	What's the name of the html file on your system?

01-13-2010, 12:53 PM	#10
kovidgoyal creator of calibre Posts: 44,512 Karma: 24495778 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Tried it on windows as well, with that file name and it still works for me, so I really have no idea why it's not working for you

01-13-2010, 05:26 PM	#12
brewt Boo-Frickety-Hoo-Erizer Posts: 251 Karma: 686 Join Date: Oct 2007 Device: Kobo Glo HD!	I've found that if my file(s) aren't in utf-8 encoding, I get the error. When I re-save them in utf-8, that takes care of it. -bjc

02-05-2010, 12:30 PM	#14
kovidgoyal creator of calibre Posts: 44,512 Karma: 24495778 Join Date: Oct 2006 Location: Mumbai, India Device: Various	open a ticket and attach the file.

02-05-2010, 01:57 PM	#15
Guido Henkel Enthusiast Posts: 37 Karma: 10 Join Date: Feb 2010 Device: mobi, epub, lit	Kovid, I have just created the ticket and attached a HTML file that generates the error. Thanks for looking into this. Guido

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