[HawaiianLungs]

I have a persistent error when running version 6.18

I have uninstalled everything. I have deleted all folders that say calibre including the programs folder.

I have deleted all tmp files. But still calibre starts with an error saying that the database folder has a bad location and to choose another. No mater what location I choose, the same thing happens and calibre aborts.

The specific error message I get is:

Traceback (most recent call last):
File "site-packages\calibre\gui2\main.py", line 424, in __init__
File "site-packages\calibre\library\database2.py", line 417, in __init__
File "site-packages\calibre\library\database2.py", line 404, in connect
File "site-packages\calibre\library\database2.py", line 456, in initialize_database
File "site-packages\calibre\library\sqlite.py", line 170, in run
DatabaseException: unable to open database file
RemoteTraceback (most recent call last):
File "site-packages\calibre\library\sqlite.py", line 141, in run
OperationalError: unable to open database file