[calendar] - Enter one-line summary about myroundcube HOT 3 CLOSED

So I am not a myroundcube developer but I had this problem on Saturday.

My plugin configurations are stored in the DB but there may be an extra step if 
you are using file based configuration:

What I ended up doing is:
1. Backup the 'plugins' directory. (Verify the backup)
2. Delete the calendar plugin
3. Unzip the plugins.zip file again (putting the new calendar plugin back in 
place).

The new definition of the database_driver class is in 
'plugins/libgpl/calendar/drivers/database/database_driver.php' which is 
installed in the latest plugins distribution.

This worked for me - but I am not a developer and the myroundcube developers 
may have more definitive information.

Yes, follow the above steps.

I followed your instructions and it solved the problem for me.
Thank you so much.