Witam,

pojawił mi sie poniższy błąd, może ktoś miał cos podobnego:

Traceback (most recent call last):
File "site-packages\calibre\utils\ipc\simple_worker.py", line 274, in main
File "site-packages\calibre\ebooks\oeb\iterator\book.py", line 62, in extract_book
File "site-packages\calibre\customize\conversion.py", line 241, in __call__
File "site-packages\calibre\ebooks\conversion\plugins\epub_input.py", line 209, in convert
ValueError: C:\Users\stolica1968\Documents\Biblioteka calibre\Vance Jack\Lyonesse - 01 - Lyonesse (1983) (27)\Lyonesse - 01 - Lyonesse (1983) - Vance Jack.epub is not a valid EPUB file (could not find opf)