Originally Posted by Tony45
I have used Calibre (64 bit) for years and love the programme. However, it now doesn't run and it doesn't add books. I would greatly appreciate any help in coming up with a solution. Many thanks, Tony
I use version Calibre 3.25 (64 bit). I run a Windows 10 (Home) laptop. I keep up to date with windows updates but I have yet to install the very latest update.
Calibre was running fine until a few days ago. I then uninstalled Calibre, and reinstalled it. Calibre still has the exact same problem. The few plugins that were there before were still there with the fresh install, so it is possible the uninstall didn't get rid of the non-working part of the programme.
I also recreated the books database of 1758 books (it took several hours). That was successful, but as I say, I am unable to add books. The only change I have made to the database is that -- always via Calibre -- I have merged two different versions of the same book into the one directory (drop down menu - Edit metadata> Merge book records> Merge only formats into first selected book delete others). Normally that means adding the epub version to the folder with the .pdf version and deleting the .epub folder. I am careful to only do this via the Calibre menu.
Here are the two Calibre error messages (1 Starting the programme 2 Trying to add books):
1 Starting the programme
calibre, version 3.25.0
ERROR: Startup error: There was an error during calibre startup. Parts of calibre may not function. Click Show details to learn more.
Traceback (most recent call last):
File "site-packages\calibre\gui2\main.py", line 300, in initialize_db_stage2
File "site-packages\calibre\gui2\main.py", line 238, in start_gui
File "site-packages\calibre\gui2\ui.py", line 435, in initialize
File "site-packages\calibre\gui2\init.py", line 762, in save_layout_state
File "site-packages\calibre\gui2\library\views.py", line 612, in save_state
File "site-packages\calibre\gui2\library\views.py", line 606, in write_state
File "site-packages\calibre\db\cache.py", line 63, in call_func_with_lock
File "site-packages\calibre\db\cache.py", line 617, in set_pref
File "site-packages\calibre\db\backend.py", line 133, in set
File "site-packages\calibre\db\backend.py", line 129, in __setitem__
File "site-packages\calibre\db\backend.py", line 845, in execute
File "c:\t\t\apsw-j6gj96\apsw-3.13.0-r1\src\cursor.c", line 236, in resetcursor
CantOpenError: CantOpenError: unable to open database file
2 Trying to add books
calibre, version 3.25.0
ERROR: Errors while adding: Failed to add any books, click "Show details" for more information
----------------------------------------------------------------------
Failed to add the book: Life of a poet
C:\Users\Rosie\Ultimate\Life of a poet.pdf
With error:
Traceback (most recent call last):
File "site-packages\calibre\gui2\add.py", line 399, in add_book
File "site-packages\calibre\db\legacy.py", line 224, in create_book_entry
File "site-packages\calibre\db\cache.py", line 63, in call_func_with_lock
File "site-packages\calibre\db\cache.py", line 1556, in create_book_entry
File "site-packages\calibre\db\backend.py", line 845, in execute
File "c:\t\t\apsw-j6gj96\apsw-3.13.0-r1\src\cursor.c", line 236, in resetcursor
CantOpenError: CantOpenError: unable to open database file
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