Notice: Use of undefined constant __DIR__ - assumed '__DIR__' in /var/www/html/bannerserve/sendgrid/sendgrid-php/vendor/autoload.php on line 5

Warning: require_once(__DIR__/composer/autoload_real.php) [function.require-once]: failed to open stream: No such file or directory in /var/www/html/bannerserve/sendgrid/sendgrid-php/vendor/autoload.php on line 5

Fatal error: require_once() [function.require]: Failed opening required '__DIR__/composer/autoload_real.php' (include_path='.:/usr/share/pear:/usr/share/php') in /var/www/html/bannerserve/sendgrid/sendgrid-php/vendor/autoload.php on line 5