[nag] Upgrading to 2.2 RC1 .. error

[dewi griffiths]

Following instructions in the upgrade document, I have run the 
2.1_to_2.2.sql script OK. When I try to execute thenext step:-
php 2006-04-18_add_creator_and_assignee_fields.php

I get the following errors:-


Storing task creators for samantha.hull at brentwood.bc.ca ...

Fatal error: Call to undefined method Nag_Driver_sql::listTasks() in 
/var/www/newhorde/nag/scripts/upgrades/2006-04-18_add_creator_and_assignee_fields.php 
on line 65

Any ideas why I'm getting this error and what I must do to fix it and 
finish the upgrade?

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