[Winter57]

Anyone have this problem? Upgraded to 6.26 today from 6.25 and cannot import any Lit file into Calibre (not even txt files!). Even ones I have previously imported. All give the same error:

WARNING: Failed to read metadata: Failed to read metadata from the following:

Engines of Destiny (2005).lit
Traceback (most recent call last):
File "site-packages\calibre\gui2\add.py", line 92, in run
File "site-packages\calibre\gui2\add.py", line 137, in add
File "site-packages\calibre\library\database2.py", line 1429, in create_book_entry
File "site-packages\calibre\library\sqlite.py", line 171, in run
DatabaseException: attempt to write a readonly database
RemoteTraceback (most recent call last):
File "site-packages\calibre\library\sqlite.py", line 142, in run
OperationalError: attempt to write a readonly database