[grafton84]

Originally Posted by kovidgoyal

https://bugs.launchpad.net/calibre/+bug/1535532

EDIT: Actually, the beta I uploaded the other day for device detection should also improve the error message. http://download.calibre-ebook.com/betas/

That was the version I was using. I put everything on local drives, still no good, I get this:

calibre, version 2.49.0
ERROR: Could not open ebook: Failed to read book, C:\Calibre Library\IFDA\Sales Manager's Play Book (1)\Sales Manager's Play Book - IFDA.epub click "Show Details" for more information