Calibre 5.10 Conversion error epub -> mobi

[msel]

I have created some books with the firefox / palemoon extension "GrabMyBooks" in epub-format. After this I imported the epub to calibre and convert the book to the mobi-format.
With Calibre Version 5.10 I get this error (version 5.09 is fine):

Spoiler:

calibre, version 5.10.0 (linux, embedded-python: True)
Conversion error: Failed: Convert book 1 of 1 (Between The Pain And The Fury)

Convert book 1 of 1 (Between The Pain And The Fury)
Failed to initialize plugin: '/home/msel/.config/calibre/plugins/Barnes & Noble.zip'
Failed to initialize plugin: '/home/msel/.config/calibre/plugins/GetFileName.zip'
Failed to initialize plugin: '/home/msel/.config/calibre/plugins/Goodreads.zip'
Failed to initialize plugin: '/home/msel/.config/calibre/plugins/Kindle covers (G).zip'
Failed to initialize plugin: '/home/msel/.config/calibre/plugins/Kindle hi-res covers.zip'
Failed to initialize plugin: '/home/msel/.config/calibre/plugins/Read MP3 AudioBook metadata.zip'
Initialized urlfixer
Failed to initialize plugin: '/home/msel/.config/calibre/plugins/djvumaker.zip'
Conversion options changed from defaults:
insert_metadata: True
output_profile: 'kindle'
read_metadata_from_opf: '/tmp/calibre_5.10.0_tmp__7ybo7s4/5xe4ai20.opf'
page_breaks_before: "//*[name()='h1' or name()='h2']"
verbose: 2
mobi_toc_at_start: True
cover: '/tmp/calibre_5.10.0_tmp__7ybo7s4/ckh9vae1.jpeg'
Resolved conversion options
calibre version: 5.10.0
{'asciiize': False,
'author_sort': None,
'authors': None,
'base_font_size': 0.0,
'book_producer': None,
'change_justification': 'original',
'chapter': "//*[((name()='h1' or name()='h2') and re:test(., "
"'\\s*((chapter|book|section|part)\\s+)|((prolog|p rologue|epilogue)(\\s+|$))', "
"'i')) or @class = 'chapter']",
'chapter_mark': 'pagebreak',
'comments': None,
'cover': '/tmp/calibre_5.10.0_tmp__7ybo7s4/ckh9vae1.jpeg',
'debug_pipeline': None,
'dehyphenate': True,
'delete_blank_paragraphs': True,
'disable_font_rescaling': False,
'dont_compress': False,
'duplicate_links_in_toc': False,
'embed_all_fonts': False,
'embed_font_family': None,
'enable_heuristics': False,
'expand_css': False,
'extra_css': None,
'extract_to': None,
'filter_css': '',
'fix_indents': True,
'font_size_mapping': None,
'format_scene_breaks': True,
'html_unwrap_factor': 0.4,
'input_encoding': None,
'input_profile': <calibre.customize.profiles.InputProfile object at 0x7fa5aac5f910>,
'insert_blank_line': False,
'insert_blank_line_size': 0.5,
'insert_metadata': True,
'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,
'mobi_file_type': 'old',
'mobi_ignore_margins': False,
'mobi_keep_original_images': False,
'mobi_toc_at_start': True,
'no_chapters_in_toc': False,
'no_inline_navbars': True,
'no_inline_toc': False,
'output_profile': <calibre.customize.profiles.KindleOutput object at 0x7fa5aac63520>,
'page_breaks_before': "//*[name()='h1' or name()='h2']",
'personal_doc': '[PDOC]',
'prefer_author_sort': False,
'prefer_metadata_cover': False,
'pretty_print': False,
'pubdate': None,
'publisher': None,
'rating': None,
'read_metadata_from_opf': '/tmp/calibre_5.10.0_tmp__7ybo7s4/5xe4ai20.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': '',
'search_replace': '[]',
'series': None,
'series_index': None,
'share_not_sync': False,
'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,
'transform_css_rules': '[]',
'unsmarten_punctuation': False,
'unwrap_lines': True,
'use_auto_toc': False,
'verbose': 2}
InputFormatPlugin: EPUB Input running
on /tmp/calibre_5.10.0_tmp__7ybo7s4/94p_528j.epub
Parsing all content...
Parsing OEBPS/css/book.css ...
Parsing OEBPS/article0.xhtml ...
Reading TOC from NCX...
Merging user specified metadata...
Detecting structure...
Inserting metadata into book...
Traceback (most recent call last):
File "runpy.py", line 194, in _run_module_as_main
File "runpy.py", line 87, in _run_code
File "site.py", line 45, in <module>
File "site.py", line 41, in main
File "calibre/utils/ipc/worker.py", line 216, in main
File "calibre/gui2/convert/gui_conversion.py", line 41, in gui_convert_override
File "calibre/gui2/convert/gui_conversion.py", line 28, in gui_convert
File "calibre/ebooks/conversion/plumber.py", line 1184, in run
File "calibre/ebooks/oeb/transforms/jacket.py", line 161, in __call__
File "calibre/ebooks/oeb/transforms/jacket.py", line 128, in insert_metadata
File "calibre/ebooks/oeb/transforms/jacket.py", line 388, in render_jacket
File "calibre/ebooks/oeb/transforms/jacket.py", line 377, in generate_html
AttributeError: 'dict' object has no attribute 'series'

I use Trisquel, which is basically Ubuntu 18.04.

[kovidgoyal]

https://github.com/kovidgoyal/calibr...eb64af95f7ad02

[JSWolf]

MY suggestion is to convert to KF8 since you have a Kindle that supports KF8.

[msel]

Everything o.k. now with the repaired version 5.10.1. Thank you.