Unable to export calibre library

Midge · 05-05-2025, 07:26 AM

The following error pops up:

calibre, version 8.3.0
ERROR: Failed: Failed to export data. Click "Show details" for more information.

Traceback (most recent call last):
File "calibre\gui2\dialogs\exim.py", line 156, in run_action
File "calibre\utils\exim.py", line 213, in export
File "calibre\db\cache.py", line 85, in call_func_with_lock
File "calibre\db\cache.py", line 3179, in export_library
File "calibre\db\cache.py", line 1233, in copy_format_to
File "calibre\db\backend.py", line 1856, in copy_format_to
File "shutil.py", line 197, in copyfileobj
OSError: [Errno 22] Invalid argument

Apologies if the answer is obvious. I'm a bit thick.

kovidgoyal · 05-05-2025, 07:57 AM

Are you trying to export to some funky location like a network drive or similar?

Midge · 05-05-2025, 01:02 PM

Initially yes, but after the first failure I figured that was probably the problem so I tried exporting locally and the same message popped up.

kovidgoyal · 05-05-2025, 10:43 PM

That error is basically the windows kernel telling calibre it cant open a file, either because the export location or the calibre library itself are in some funky location.

05-05-2025, 07:26 AM	#1
Midge Junior Member Posts: 4 Karma: 10 Join Date: Dec 2023 Location: United Kingdom Device: Kobo Aura One/Kobo App on Android 14	Unable to export calibre library The following error pops up: calibre, version 8.3.0 ERROR: Failed: Failed to export data. Click "Show details" for more information. Traceback (most recent call last): File "calibre\gui2\dialogs\exim.py", line 156, in run_action File "calibre\utils\exim.py", line 213, in export File "calibre\db\cache.py", line 85, in call_func_with_lock File "calibre\db\cache.py", line 3179, in export_library File "calibre\db\cache.py", line 1233, in copy_format_to File "calibre\db\backend.py", line 1856, in copy_format_to File "shutil.py", line 197, in copyfileobj OSError: [Errno 22] Invalid argument Apologies if the answer is obvious. I'm a bit thick.

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05-05-2025, 07:57 AM	#2
kovidgoyal creator of calibre Posts: 45,182 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Are you trying to export to some funky location like a network drive or similar?

05-05-2025, 01:02 PM	#3
Midge Junior Member Posts: 4 Karma: 10 Join Date: Dec 2023 Location: United Kingdom Device: Kobo Aura One/Kobo App on Android 14	Initially yes, but after the first failure I figured that was probably the problem so I tried exporting locally and the same message popped up.

05-05-2025, 10:43 PM	#4
kovidgoyal creator of calibre Posts: 45,182 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	That error is basically the windows kernel telling calibre it cant open a file, either because the export location or the calibre library itself are in some funky location.