房产安装遇到的致命问题！

我在安装房产的时候提示
Warning: include_once(../source/class/class_core.php) [function.include-once]: failed to open stream: No such file or directory in D:\wwwroot\newhuantai100.com\house\houseinstall\index.php on line 10

Warning: include_once() [function.include]: Failed opening '../source/class/class_core.php' for inclusion (include_path='.;C:\php5\pear') in D:\wwwroot\newhuantai100.com\house\houseinstall\index.php on line 10

Warning: include_once(../source/function/function_core.php) [function.include-once]: failed to open stream: No such file or directory in D:\wwwroot\newhuantai100.com\house\houseinstall\index.php on line 11

Warning: include_once() [function.include]: Failed opening '../source/function/function_core.php' for inclusion (include_path='.;C:\php5\pear') in D:\wwwroot\newhuantai100.com\house\houseinstall\index.php on line 11

Fatal error: Class 'discuz_core' not found in D:\wwwroot\newhuantai100.com\house\houseinstall\index.php on line 14
  

请问这是咋回事呢？

重新上传一下文件再安装一下试试