[wp-trac] [WordPress Trac] #12997: Call to a member function get_names() on a non-object in user.php

[WordPress Trac]

#12997: Call to a member function get_names() on a non-object in user.php
--------------------------+-------------------------------------------------
 Reporter:  ipstenu       |       Owner:            
     Type:  defect (bug)  |      Status:  new       
 Priority:  normal        |   Milestone:  Unassigned
Component:  General       |     Version:  3.0       
 Severity:  normal        |    Keywords:            
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 This is showing up in my error.log on both 3.0 installes:

 {{{ PHP Fatal error:  Call to a member function get_names() on a non-
 object in /home/ipstenu/public_html/wp-includes/user.php on line 422 }}}

 '''solarissmoke''' (on the wp.org forums) did more research and came up
 with this:

 Hi folks,

 I'm getting this error when wordpress does cron jobs (by visiting wp-
 cron.php?doing_wp_cron):

 PHP Fatal error: Call to a member function get_names() on a non-object in
 /wp-includes/user.php on line 422

 I think that the function where the error occurs (count_users()) is being
 called by the wp_version_check function which is one of the regular cron
 actions. The error suggests that the global variable $wp_roles has not
 been created by the time the function is called - but I can't track where
 this should be happening in the first place.

 I've looked at my cron options and the only ones there are the defaults
 (wp_update_plugins, wp_version_check, wp_update_themes,
 wp_scheduled_delete).

 The error is occurring every single time wp-cron.php is accessed.

 See: http://wordpress.org/support/topic/387647

 I can repro it as well.

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Ticket URL: <http://core.trac.wordpress.org/ticket/12997>
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