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Old 12-04-2025, 05:20 PM   #1
Dan__
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Posts: 114
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Join Date: Feb 2011
Device: Nook - Simple Touch
Error sending to kobo

Does any know what might cause this error?
calibre, version 8.15.0
ERROR: Error: Error communicating with device

Could not kepubify the book Eva Rae Thomas Mystery Box Set (Eva Rae Thomas Mystery Box Set - Willow, Rose,_1980.epub) failed with error: Failed to find obfuscation key

Traceback (most recent call last):
File "calibre/devices/kobo/driver.py", line 2362, in _kepubify
File "calibre/ebooks/oeb/polish/kepubify.py", line 545, in kepubify_path
File "calibre/ebooks/oeb/polish/container.py", line 1635, in get_container
File "calibre/ebooks/oeb/polish/container.py", line 1232, in __init__
File "calibre/ebooks/oeb/polish/container.py", line 1359, in process_encryption
calibre.ebooks.oeb.polish.container.ObfuscationKey Missing: Failed to find obfuscation key

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "calibre/gui2/device.py", line 110, in run
File "calibre/gui2/device.py", line 661, in _upload_books
File "calibre/devices/kobo/driver.py", line 2304, in upload_books
File "calibre/devices/kobo/driver.py", line 2366, in _kepubify
ValueError: Could not kepubify the book Eva Rae Thomas Mystery Box Set (Eva Rae Thomas Mystery Box Set - Willow, Rose,_1980.epub) failed with error: Failed to find obfuscation key


Thanks
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Old 12-04-2025, 06:09 PM   #2
gbm
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Posts: 2,219
Karma: 8888888
Join Date: Jun 2010
Device: Kobo Clara HD,Hisence Sero 7 Pro RIP, Nook STR, jetbook lite
You have an embedded font that is obfuscated and calibre can not find teh key.
https://epubsecrets.com/font-embeddi...onmangling.php

You need to re-download the epub or delete embedded fonts.

bernie

Quote:
Originally Posted by Dan__ View Post
Does any know what might cause this error?
calibre, version 8.15.0
ERROR: Error: Error communicating with device

Could not kepubify the book Eva Rae Thomas Mystery Box Set (Eva Rae Thomas Mystery Box Set - Willow, Rose,_1980.epub) failed with error: Failed to find obfuscation key

Traceback (most recent call last):
File "calibre/devices/kobo/driver.py", line 2362, in _kepubify
File "calibre/ebooks/oeb/polish/kepubify.py", line 545, in kepubify_path
File "calibre/ebooks/oeb/polish/container.py", line 1635, in get_container
File "calibre/ebooks/oeb/polish/container.py", line 1232, in __init__
File "calibre/ebooks/oeb/polish/container.py", line 1359, in process_encryption
calibre.ebooks.oeb.polish.container.ObfuscationKey Missing: Failed to find obfuscation key

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "calibre/gui2/device.py", line 110, in run
File "calibre/gui2/device.py", line 661, in _upload_books
File "calibre/devices/kobo/driver.py", line 2304, in upload_books
File "calibre/devices/kobo/driver.py", line 2366, in _kepubify
ValueError: Could not kepubify the book Eva Rae Thomas Mystery Box Set (Eva Rae Thomas Mystery Box Set - Willow, Rose,_1980.epub) failed with error: Failed to find obfuscation key


Thanks
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Old 12-04-2025, 06:28 PM   #3
Dan__
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Dan__ began at the beginning.
 
Posts: 114
Karma: 10
Join Date: Feb 2011
Device: Nook - Simple Touch
thankas you, I will look for it
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