'NoneType' object has no attributable 'resource_index' error

[wiggy97]

I am trying to convert an azw3 ebook to pdf and get a conversion failed message. Even trying to open the file in Calibre gives me the above message. All my other e-books are fine both to open and convert.
What am I doing wrong please?

[kovidgoyal]

https://www.mobileread.com/forums/sho...d.php?t=186697

[wiggy97]

Trying to convert the azw3 to pdf I get the following file

Spoiler:

Convert book 1 of 1 (What Your Cat Wants)
Resolved conversion options
calibre version: 1.48.0
{'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(., '\\s*((chapter|book|section|part)\\s+)|((prolog|pr ologue|epilogue)(\\s+|$))', 'i')) or @class = 'chapter']",
'chapter_mark': u'pagebreak',
'comments': None,
'cover': u'C:\\Users\\DOUGLA~1\\AppData\\Local\\Temp\\calib re_oon2rh\\nrbona.jpeg',
'custom_size': None,
'debug_pipeline': None,
'dehyphenate': True,
'delete_blank_paragraphs': True,
'disable_font_rescaling': False,
'duplicate_links_in_toc': False,
'embed_all_fonts': False,
'embed_font_family': None,
'enable_heuristics': False,
'expand_css': False,
'extra_css': None,
'filter_css': u'',
'fix_indents': True,
'font_size_mapping': None,
'format_scene_breaks': True,
'html_unwrap_factor': 0.4,
'input_encoding': None,
'input_profile': <calibre.customize.profiles.KindleInput object at 0x03CBAAD0>,
'insert_blank_line': False,
'insert_blank_line_size': 0.5,
'insert_metadata': False,
'isbn': None,
'italicize_common_cases': True,
'keep_ligatures': False,
'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,
'markup_chapter_headings': True,
'max_toc_links': 50,
'minimum_line_height': 120.0,
'no_chapters_in_toc': False,
'no_inline_navbars': False,
'old_pdf_engine': False,
'output_profile': <calibre.customize.profiles.OutputProfile object at 0x03CB98F0>,
'override_profile_size': False,
'page_breaks_before': u"//*[name()='h1' or name()='h2']",
'paper_size': u'letter',
'pdf_add_toc': True,
'pdf_default_font_size': 20,
'pdf_footer_template': None,
'pdf_header_template': None,
'pdf_mark_links': False,
'pdf_mono_family': u'Courier New',
'pdf_mono_font_size': 16,
'pdf_page_numbers': True,
'pdf_sans_family': u'Agency FB',
'pdf_serif_family': u'Times New Roman',
'pdf_standard_font': u'serif',
'prefer_metadata_cover': False,
'preserve_cover_aspect_ratio': True,
'pretty_print': False,
'pubdate': None,
'publisher': None,
'rating': None,
'read_metadata_from_opf': u'C:\\Users\\DOUGLA~1\\AppData\\Local\\Temp\\calib re_oon2rh\\rhwuva.opf',
'remove_fake_margins': True,
'remove_first_image': False,
'remove_paragraph_spacing': False,
'remove_paragraph_spacing_indent_size': 1.5,
'renumber_headings': True,
'replace_scene_breaks': u'',
'search_replace': '[]',
'series': None,
'series_index': None,
'smarten_punctuation': False,
'sr1_replace': None,
'sr1_search': None,
'sr2_replace': None,
'sr2_search': None,
'sr3_replace': None,
'sr3_search': None,
'start_reading_at': None,
'subset_embedded_fonts': False,
'tags': None,
'timestamp': None,
'title': None,
'title_sort': None,
'toc_filter': None,
'toc_threshold': 6,
'toc_title': None,
'uncompressed_pdf': False,
'unit': u'inch',
'unsmarten_punctuation': False,
'unwrap_lines': True,
'use_auto_toc': False,
'verbose': 2}
InputFormatPlugin: MOBI Input running
on C:\Users\DOUGLA~1\AppData\Local\Temp\calibre_oon2r h\94fzzz.azw3
Found KF8 MOBI of type 'standalone'
Extracting text...
Python function terminated unexpectedly
'NoneType' object has no attribute 'resource_index' (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 195, in main
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 31, in gui_convert_override
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 25, in gui_convert
File "site-packages\calibre\ebooks\conversion\plumber.py", line 1040, in run
File "site-packages\calibre\customize\conversion.py", line 241, in __call__
File "site-packages\calibre\ebooks\conversion\plugins\mobi_in put.py", line 43, in convert
File "site-packages\calibre\ebooks\mobi\reader\mobi8.py", line 102, in __call__
File "site-packages\calibre\ebooks\mobi\reader\mobi8.py", line 436, in extract_resources
AttributeError: 'NoneType' object has no attribute 'resource_index'

Just trying to open the book I get

calibre, version 1.48.0
ERROR: Could not open ebook: 'NoneType' object has no attribute 'resource_index'

Traceback (most recent call last):
File "site-packages\calibre\gui2\viewer\main.py", line 33, in run
File "threading.py", line 761, in run
File "site-packages\calibre\ebooks\oeb\iterator\book.py", line 99, in __enter__
File "site-packages\calibre\customize\conversion.py", line 241, in __call__
File "site-packages\calibre\ebooks\conversion\plugins\mobi_in put.py", line 43, in convert
File "site-packages\calibre\ebooks\mobi\reader\mobi8.py", line 102, in __call__
File "site-packages\calibre\ebooks\mobi\reader\mobi8.py", line 436, in extract_resources
AttributeError: 'NoneType' object has no attribute 'resource_index'

Any help gratefully received

[kovidgoyal]

Will be fixed in the next release.

[thisbook]

edit: sorry. The issue was not as related as I first thought.