I had the same issue, with a silent fatal error during plugin activation, and jean-gui’s solution also worked for me.
I believe this is because of the check in ure-lib.php:
if (!defined(“WPLANG”)) {
die; // Silence is golden, direct call is prohibited
}
my config did not have WPLANG defined…could another property be checked instead? Or at least log an error so that we could have seen this in the php error log?
