18316097 examples [45:40, 6843.25 examples/s]Traceback (most recent call last):


 "/opt/anaconda3/envs/tf2/lib/python3.6/site-packages/tensorflow_core/python/util/compat.py", line 94, in as_text

return bytes_or_text.decode(encoding)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte

Traceback (most recent call last):


 "site-packages\calibre\customize\ui.py", line 428, in get_file_type_metadata


 "site-packages\calibre\customize\builtins.py", line 285, in get_metadata


 "site-packages\calibre\ebooks\metadata\mobi.py", line 498, in get_metadata


 "site-packages\calibre\ebooks\mobi\reader\headers.py", line 295, in __init__


 "site-packages\calibre\ebooks\mobi\reader\headers.py", line 323, in identity
UnicodeDecodeError: 'utf8' codec can't decode byte 0x81 in position 0: invalid start byte
