Thread:Project:Support desk/MediaWiki v1.19.1 installation: Compilation failed: support for \P, \p, and \X has not been compiled/reply (9)

I seem to be having the same problem in 1.19.2:

Warning: preg_split: Compilation failed: support for \P, \p, and \X has not been compiled at offset 192 in /var/www/html/wiki/includes/parser/Parser.php on line 1483 Warning: array_shift expects parameter 1 to be array, boolean given in /var/www/html/wiki/includes/parser/Parser.php on line 1484 Warning: preg_split: Compilation failed: support for \P, \p, and \X has not been compiled at offset 192 in /var/www/html/wiki/includes/parser/Parser.php on line 1483 Warning: array_shift expects parameter 1 to be array, boolean given in /var/www/html/wiki/includes/parser/Parser.php on line 1484