Blank page on install (I've searched, I promise!)

[teleute]

I've unpacked the files for Mantis 1.2.11, and when I navigate to admin/install.php I get a blank screen. PHP is installed and loaded, and I can run a page with phpinfo() from within that directory.

OS is RHEL 6.2
Apache version is 2.2.19
PHP version is 5.3.3

I've tried commenting out the @ in line "@require_once( dirname( dirname( __FILE__ ) ) . DIRECTORY_SEPARATOR . 'core.php' );", and still just get a blank page. There's nothing in the Apache logs.

What can I try next to figure out this issue? Thank you!

[atrol]

Try some "old style" debugging.
I described this at
http://www.mantisbt.org/forums/viewtopi ... 886#p46777
Maybe you have to change the line numbers, since that was for 1.2.8

[teleute]

Alright - I tracked it down to the section in library/utf8/utf8.php:

"Check whether PCRE has been compiled with UTF-8 support", specifically line 49 (the trigger_error line). I'll keep investigating from here, but certainly if anyone has any suggestions to go on it would be most welcome. Thank you!

[teleute]

I found this post - http://www.mantisbt.org/forums/viewtopi ... cre#p43782 - which says "PHP is using Perl's Compatible Regular Expressions or PCRE. If the version of PCRE that your php is using is something less of 5 (I have 4.5.x), than you might get that error. Use phpinfo() to see what version you have."

Mine does show that it's using version 5. Perhaps the required version has changed since the above post? Anyway, I'm looking to figure out how to update this now, though I haven't found anything yet.

[teleute]

I've tried updating my version of PHP (which is where this is supposedly bundled, as far as I can tell), but still no luck. Anyone have any ideas how I might be able to work around this?

Thanks!

I've also noticed that this started at version 1.2.0. I can put any previous version in, and it works fine, but everything from 1.2.0 on does not.