Fatal error: Uncaught Error: Class 'AASTTree' not found in /home/cybertoast/sites/phab.cybertoast.com/arcanist/src/parser/xhpast/api/XHPASTTree.php:3 Stack trace: #0 {main} thrown in /home/cybertoast/sites/phab.cybertoast.com/arcanist/src/parser/xhpast/api/XHPASTTree.php on line 3