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jgawne · 07-05-2017, 09:56 AM

What am I doing wrong?

Three times I have almost finished polishing off an ebook (first time doing all of it in calibre instead of sigil and calibre). I save copies every so often, but at some point when I try and open the file I get a failed to read book message.

All I can think of is that in using a find and replace command I'm killing some code I needed?

I get one of two messages- the first is when trying to open a file in Adobe Digital editions:

calibre, version 3.2.1
ERROR: Could not open e-book: Failed to read book, C:\Users\Jon\Documents\Calibre Library\Unknown\PEN EPUB D (162)\PEN EPUB D - Unknown.epub click "Show Details" for more information

Traceback (most recent call last):
File "site-packages\calibre\utils\ipc\simple_worker.py", line 286, in main
File "site-packages\calibre\ebooks\oeb\iterator\book.py", line 64, in extract_book
File "site-packages\calibre\customize\conversion.py", line 245, in __call__
File "site-packages\calibre\ebooks\conversion\plugins\epub_in put.py", line 259, in convert
ValueError: C:\Users\Jon\Documents\Calibre Library\Unknown\PEN EPUB D (162)\PEN EPUB D - Unknown.epub is not a valid EPUB file (could not find opf)

I get this when trying to open in Calibre (from which it was saved).

calibre, version 3.2.1
ERROR: Could not open e-book: Failed to read book, C:\Users\Jon\Documents\Calibre Library\Timothy J. Gawne\OLD GUY AND THE PLANET OF ETERNAL N (159)\OLD GUY AND THE PLANET OF ETERN - Timothy J. Gawne.epub click "Show Details" for more information

Traceback (most recent call last):
File "site-packages\calibre\utils\ipc\simple_worker.py", line 286, in main
File "site-packages\calibre\ebooks\oeb\iterator\book.py", line 64, in extract_book
File "site-packages\calibre\customize\conversion.py", line 245, in __call__
File "site-packages\calibre\ebooks\conversion\plugins\epub_in put.py", line 259, in convert
ValueError: C:\Users\Jon\Documents\Calibre Library\Timothy J. Gawne\OLD GUY AND THE PLANET OF ETERNAL N (159)\OLD GUY AND THE PLANET OF ETERN - Timothy J. Gawne.epub is not a valid EPUB file (could not find opf)

07-05-2017, 09:56 AM	#1
jgawne Member Posts: 20 Karma: 10 Join Date: Jan 2012 Device: kindle	"Failed to read book" What am I doing wrong? Three times I have almost finished polishing off an ebook (first time doing all of it in calibre instead of sigil and calibre). I save copies every so often, but at some point when I try and open the file I get a failed to read book message. All I can think of is that in using a find and replace command I'm killing some code I needed? I get one of two messages- the first is when trying to open a file in Adobe Digital editions: calibre, version 3.2.1 ERROR: Could not open e-book: Failed to read book, C:\Users\Jon\Documents\Calibre Library\Unknown\PEN EPUB D (162)\PEN EPUB D - Unknown.epub click "Show Details" for more information Traceback (most recent call last): File "site-packages\calibre\utils\ipc\simple_worker.py", line 286, in main File "site-packages\calibre\ebooks\oeb\iterator\book.py", line 64, in extract_book File "site-packages\calibre\customize\conversion.py", line 245, in __call__ File "site-packages\calibre\ebooks\conversion\plugins\epub_in put.py", line 259, in convert ValueError: C:\Users\Jon\Documents\Calibre Library\Unknown\PEN EPUB D (162)\PEN EPUB D - Unknown.epub is not a valid EPUB file (could not find opf) I get this when trying to open in Calibre (from which it was saved). calibre, version 3.2.1 ERROR: Could not open e-book: Failed to read book, C:\Users\Jon\Documents\Calibre Library\Timothy J. Gawne\OLD GUY AND THE PLANET OF ETERNAL N (159)\OLD GUY AND THE PLANET OF ETERN - Timothy J. Gawne.epub click "Show Details" for more information Traceback (most recent call last): File "site-packages\calibre\utils\ipc\simple_worker.py", line 286, in main File "site-packages\calibre\ebooks\oeb\iterator\book.py", line 64, in extract_book File "site-packages\calibre\customize\conversion.py", line 245, in __call__ File "site-packages\calibre\ebooks\conversion\plugins\epub_in put.py", line 259, in convert ValueError: C:\Users\Jon\Documents\Calibre Library\Timothy J. Gawne\OLD GUY AND THE PLANET OF ETERNAL N (159)\OLD GUY AND THE PLANET OF ETERN - Timothy J. Gawne.epub is not a valid EPUB file (could not find opf)