Solutions to Common Problems

[tubedogg]

This thread contains solutions to common problems encountered while installing vBulletin.

[tubedogg]

During the first step of installation, you might get this message:

track_vars enabled ... Failed!

track_vars is very important to vBulletin, and as a matter of fact (from I've seen), you won't be able to login to your Admin CP and a lot of other things will be disabled as well.

Don't worry though, there is an easy fix to this problem.
Before starting to install your board, open config.php, and add the following line to the end of it, right before:

?> 

This is the line you need to add:

ini_set ("track_vars","1"); 

This fix might not work for all hosts, but it does on most of them.

(Posted by FireFly)

[tubedogg]

If you are getting an error similar to this:

Warning: Cannot add header information - headers already sent by (output started at ./admin/config.php:38) in xxxfile.php

then simply open your config.php file and delete any white space after the
?>
at the end of the file. So if you press Control+End, you should be taken to right after the
>
and not any further.

Like this, where | is the cursor:

?>|

[tubedogg]

CGI Header error solutions, step by step.

http://www.vbulletin.com/forum/showthread.php?s=&threadid=24438