Problem with beta 12
I installed beta, 12, tried to do a batch edit. After that tried to add a book and my whole library got deleted.
I restarted the program, now when I try to add a new book I get this error:
'NoneType' object is unsubscriptable
Detailed traceback:
Traceback (most recent call last):
File "", line 469, in add_books
File "", line 503, in _add_books
File "library.pyz/calibre.gui2.library", line 145, in add_books
File "library.pyz/calibre.library.database2", line 715, in add_books
File "library.pyz/calibre.library.database2", line 440, in set_path
File "library.pyz/calibre.library.database2", line 521, in formats
TypeError: 'NoneType' object is unsubscriptable
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