Warning: require(./Framework/ThinkPHP.php) [function.require]: failed to open stream: No such file or directory in C:\wwwroot\ysd2000.com\index.php on line 5

Fatal error: require() [function.require]: Failed opening required './Framework/ThinkPHP.php' (include_path='.;C:\php5\pear') in C:\wwwroot\ysd2000.com\index.php on line 5