Warning: require(THINK_PATH/ThinkPHP.php) [function.require]: failed to open stream: No such file or directory in E:\sxscfw.cn\index.php on line 4

Fatal error: require() [function.require]: Failed opening required 'THINK_PATH/ThinkPHP.php' (include_path='.;C:\php5\pear') in E:\sxscfw.cn\index.php on line 4