Warning: require(db/db.php) [function.require]: failed to open stream: No such file or directory in /index.php on line 1

Warning: require(db/db.php) [function.require]: failed to open stream: No such file or directory in /index.php on line 1

Warning: require(db/db.php) [function.require]: failed to open stream: No such file or directory in /index.php on line 1

Fatal error: require() [function.require]: Failed opening required 'db/db.php' (include_path='.:/:/usr/local/php5/lib/pear') in /index.php on line 1