I have a working localhost on which I am trying to run Xoops. The attempt resulted in this message:

Warning: main(/path/to/xoops/directory/include/common.php) [function.main]: failed to open stream: No such file or directory in C:\Program Files\Internet\apachefriends\xampp\htdocs\xoops\mainfile.php on line 60

Warning: main() [function.include]: Failed opening '/path/to/xoops/directory/include/common.php' for inclusion (include_path='.;C:\Program Files\Internet\apachefriends\xampp\php\pear\') in C:\Program Files\Internet\apachefriends\xampp\htdocs\xoops\mainfile.php on line 60

Fatal error: Call to undefined function xoops_header() in C:\Program Files\Internet\apachefriends\xampp\htdocs\xoops\header.php on line 23

The file mentioned in the warnings (/include/common.php) is where it should be.
And I don't know enough about php to debug the fatal.

Can anyone please give me a place to start?

In mainfile.php


The last line should have your path to the root dir eg: C:\whatever

Right now it seems, you have left the deafault text in there '/path/to/xoops/directory' which of course isn't the path to your files.

Cheers.