Warning: require(//../app/autoload.php): failed to open stream: No such file or directory in /app.php on line 6

Warning: require(//../app/autoload.php): failed to open stream: No such file or directory in /app.php on line 6

Fatal error: require(): Failed opening required '//../app/autoload.php' (include_path='.:/:/usr/local/php56/lib/pear') in /app.php on line 6