When I try to export calibre data I get the following error message:
Spoiler:
calibre, version 3.19.0
ERROR: Failed: Failed to export data. Click "Show Details" for more information.
Traceback (most recent call last):
File "site-packages\calibre\gui2\dialogs\exim.py", line 140, in run_action
File "site-packages\calibre\utils\exim.py", line 195, in export
File "site-packages\calibre\db\cache.py", line 63, in call_func_with_lock
File "site-packages\calibre\db\cache.py", line 2219, in export_library
File "site-packages\calibre\db\cache.py", line 63, in call_func_with_lock
File "site-packages\calibre\db\cache.py", line 724, in copy_cover_to
File "site-packages\calibre\db\backend.py", line 1369, in copy_cover_to
File "shutil.py", line 52, in copyfileobj
File "site-packages\calibre\utils\exim.py", line 50, in write
IOError: [Errno 22] Invalid argument