I on Windows 10 enterprise and am using Calibre 5.0 and Sigil 1.10
I was tidying up an old ePub. I had just finished in Calibre Edit and the the ePub did not show any errors in Epubcheck or the Check Book tool.
I then tried to load the ePub into Sigil and got the following message
Quote:
Traceback (most recent call last):
File "C:/Prog1/Sigil/python3lib\opf_newparser.py", line 284, in get_package
(ver, uid, attr) = self.package
TypeError: cannot unpack non-iterable NoneType object
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and Sigil would not open.
I then tried with another ePub in the series and got the same message BUT this time after I cancelled the message Sigil DID open the ePub. It did however give the message that there were problems opening the book.
Calibre Edit opens the files without problems.
Any Ideas?