These warnings appear when switching from one theme to another in site options: (Mahara version 1.7)
[WAR] d9 (lib/dwoo/dwoo/Dwoo/Loader.php:103) include(/var/www/myportfolio-ac-testing-mahara/releases/20121228012029/lib/dwoo/dwoo/plugins/builtin/blocks/topLevelBlock.php): failed to open stream: No such file or directory
[WAR] d9 (lib/dwoo/dwoo/Dwoo/Loader.php:103) include(): Failed opening '/var/www/myportfolio-ac-testing-mahara/releases/20121228012029/lib/dwoo/dwoo/plugins/builtin/blocks/topLevelBlock.php' for inclusion (include_path='/var/www/myportfolio-ac-testing-mahara/releases/20130516043004/lib/:/var/www/myportfolio-ac-testing-mahara/releases/20130516043004/lib/pear/:.:/usr/share/php:/usr/share/pear')
Looks to be a race situation error where Dwoo tries to load certain things that are not cached.
A refresh of the page makes the errors go away. So only a minor annoyance for a task that should rarely be changed.
We should move away from using Dwoo as it is not currently been maintained.
Here is an interesting look at speed tests between twig and smarty3
http://
Also the user comments give good insight into the pros and cons of going with either option.