message below happens when I try to install Cmandrill 3.0 extension into Joomla 2.5.6
Warning: require_once(__DIR__/autoloader/autoloader.php) [function.require-once]: failed to open stream: No such file or directory in /home/content/67/8624667/html/tmp/install_531961514a51f/libraries/compojoom/libraries/compojoom/include.php on line 18

Fatal error: require_once() [function.require]: Failed opening required '__DIR__/autoloader/autoloader.php' (include_path='.:/usr/local/php5/lib/php') in /home/content/67/8624667/html/tmp/install_531961514a51f/libraries/compojoom/libraries/compojoom/include.php on line 18