Conversion error epub to pdf

calibre, version 2.77.0 (win32, embedded-python: True)
Conversion Error: Failed: Convert book 1 of 1 (fess101)

Convert book 1 of 1 (fess101)
Resolved conversion options
calibre version: 2.77.0
{'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\\Regs\\AppData\\Local\\Temp\\calibre_8 l4hv8\\ae69pl.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.InputProfile object at 0x04572850>,
'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.GenericEink object at 0x04572A50>,
'override_profile_size': False,
'page_breaks_before': u'/',
'paper_size': u'letter',
'pdf_add_toc': False,
'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': False,
'pdf_sans_family': u'MS Shell Dlg 2',
'pdf_serif_family': u'Times New Roman',
'pdf_standard_font': u'serif',
'prefer_metadata_cover': False,
'preserve_cover_aspect_ratio': False,
'pretty_print': False,
'pubdate': None,
'publisher': None,
'rating': None,
'read_metadata_from_opf': u'C:\\Users\\Regs\\AppData\\Local\\Temp\\calibre_8 l4hv8\\5xfm5r.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,
'transform_css_rules': '[]',
'uncompressed_pdf': False,
'unit': u'inch',
'unsmarten_punctuation': False,
'unwrap_lines': True,
'use_auto_toc': False,
'verbose': 2}
InputFormatPlugin: EPUB Input running
on C:\Users\Regs\AppData\Local\Temp\calibre_8l4hv8\en f4pj.epub
Parsing all content...
Parsing OEBPS/Text/cover.xhtml ...
Parsing OEBPS/Styles/chapter1.css ...
Property: Unexpected ident. [225:1: ont-size]
CSSStyleDeclaration: Syntax Error in Property: f
ont-size:1em
Parsing OEBPS/Text/Chapter-1.xhtml ...
Reading TOC from NCX...
Merging user specified metadata...
Detecting structure...
Flattening CSS and remapping font sizes...
Source base font size is 12.00000pt
Removing fake margins...
Found 48 items of level: p_3
Found 2 items of level: div_1
Found 18 items of level: div_2
Found 17 items of level: div_3
Found 6 items of level: div_4
Found 3 items of level: p_5
Found 6 items of level: p_4
Found 47 items of level: p_2
Found 1 items of level: p_1
Ignoring level p_1
Ignoring level div_3
Ignoring level div_4
Ignoring level p_5
Ignoring level p_4
p_3 left margin stats: Counter({u'0': 32, u'0%': 16})
p_3 right margin stats: Counter({u'0': 32, u'0%': 16})
div_1 left margin stats: Counter({u'0': 1})
div_1 right margin stats: Counter({u'0': 1})
div_2 left margin stats: Counter({u'0': 7})
div_2 right margin stats: Counter({u'0': 7})
p_2 left margin stats: Counter({u'0': 47})
p_2 right margin stats: Counter({u'0': 47})
Cleaning up manifest...
Trimming unused files from manifest...
Trimming u'OEBPS/Images/License.jpg' from manifest
Trimming u'OEBPS/Images/cover.jpg' from manifest
Trimming u'OEBPS/Misc/Bookman-Demi.PFB' from manifest
Trimming u'OEBPS/Fonts/Bookman-Light.TTF' from manifest
Trimming u'OEBPS/Fonts/Bookman-LightItalic.TTF' from manifest
Trimming u'OEBPS/Fonts/GarrisonSans.TTF' from manifest
Trimming u'OEBPS/Fonts/TimesNewRomanPS-BoldMT.TTF' from manifest
Trimming u'OEBPS/Fonts/Wingdings-Regular.TTF' from manifest
Trimming u'OEBPS/Fonts/Wingdings3.TTF' from manifest
Trimming u'OEBPS/Images/thinking_fmt.jpeg' from manifest
Trimming u'OEBPS/Images/4264.png' from manifest
Trimming u'OEBPS/Images/4328.png' from manifest
Trimming u'OEBPS/Images/4563.jpg' from manifest
Trimming u'OEBPS/Images/Discussing_fmt.jpeg' from manifest
Trimming u'OEBPS/Images/Reading_fmt.jpeg' from manifest
Creating PDF Output...
Splitting markup on page breaks and flow limits, if any...
Converting input as a text based book...
Serializing oeb input to disk for processing...
Rendering pages to PDF...
Processing C:\Users\Regs\AppData\Local\Temp\calibre_8l4hv8\ud pnei_pdf_out\OEBPS\Text\cover.xhtml...
Loading font: family_name=Arial full_name=Arial postscript_name=ArialMT subfamily_name=Regular