Thread: Forma Error when sending books to Kobo Forma
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Old 09-03-2019, 10:01 PM   #1
stoney77
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Posts: 43
Karma: 30918
Join Date: Dec 2009
Location: Washington, DC area
Device: Kobo Elipsa 2e, Kobo Forma, Kobo Aura HD, iPad Pro, Kindle Oasis
Error when sending books to Kobo Forma
I get the following error message when I try to send books(epub) from my Calibre library to my Kobo Forma:

calibre, version 3.47.0
ERROR: Error: Error communicating with device

'NoneType' object has no attribute 'startswith'

Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 90, in run
File "site-packages/calibre/gui2/device.py", line 594, in _upload_books
File "calibre_plugins.kobotouch_extended.device.driver" , line 399, in upload_books
File "site-packages/calibre/devices/kobo/driver.py", line 2087, in upload_books
File "calibre_plugins.kobotouch_extended.device.driver" , line 313, in _modify_epub
File "lib/python2.7/posixpath.py", line 254, in expanduser
AttributeError: 'NoneType' object has no attribute 'startswith'

I've tried researching this problem but the discussions get very technical and I am totally unable to follow.

Can someone please give me some clue as to how to proceed? I'm using Calibre 3.47 on a Mac High Sierra 10.13.6. This is a new problem to me--I've been sending books to my various Kobo devices for years with no problems. Thanks in advance.
Last edited by stoney77; 09-03-2019 at 10:02 PM. Reason: misspelling
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