Title: errors after upgrade
Last modified: November 23, 2017

---

# errors after upgrade

 *  [gabitech](https://wordpress.org/support/users/gabitech/)
 * (@gabitech)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/errors-after-upgrade-6/)
 * After upgrading both the theme and the WP to 4.9 I’m getting the follwing errors
   when activating WP Bootstrap Starter in the themes page:
    ———– Warning: Invalid
   argument supplied for foreach() in /widgets.php on line 1322 Warning: Invalid
   argument supplied for foreach() in /widgets.php on line 1322 Warning: Invalid
   argument supplied for foreach() in /widgets.php on line 1322 Warning: Invalid
   argument supplied for foreach() in /widgets.php on line 1322 Warning: Invalid
   argument supplied for foreach() in /widgets.php on line 1322 Warning: Invalid
   argument supplied for foreach() in /widgets.php on line 1322 Warning: Invalid
   argument supplied for foreach() in /widgets.php on line 1322 Warning: Invalid
   argument supplied for foreach() in /widgets.php on line 1322 Warning: Invalid
   argument supplied for foreach() in /widgets.php on line 1322 Warning: Invalid
   argument supplied for foreach() in /widgets.php on line 1322 Warning: array_merge()[
   function.array-merge]: Argument #1 is not an array in /widgets.php on line 1159
   Warning: array_diff() [function.array-diff]: Argument #2 is not an array in /
   widgets.php on line 1160 Warning: Invalid argument supplied for foreach() in /
   widgets.php on line 1162 Warning: array_merge() [function.array-merge]: Argument#
   1 is not an array in /widgets.php on line 1170 Warning: Cannot modify header 
   information – headers already sent by (output started at /widgets.php:1322) in/
   wp-admin/includes/misc.php on line 1114 ———–
 * Any advice would be much appreciated,
    Gabriel
    -  This topic was modified 8 years, 6 months ago by [gabitech](https://wordpress.org/support/users/gabitech/).

The topic ‘errors after upgrade’ is closed to new replies.

 * ![](https://i0.wp.com/themes.svn.wordpress.org/wp-bootstrap-starter/3.3.6/screenshot.
   png)
 * WP Bootstrap Starter
 * [Support Threads](https://wordpress.org/support/theme/wp-bootstrap-starter/)
 * [Active Topics](https://wordpress.org/support/theme/wp-bootstrap-starter/active/)
 * [Unresolved Topics](https://wordpress.org/support/theme/wp-bootstrap-starter/unresolved/)
 * [Reviews](https://wordpress.org/support/theme/wp-bootstrap-starter/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [gabitech](https://wordpress.org/support/users/gabitech/)
 * Last activity: [8 years, 6 months ago](https://wordpress.org/support/topic/errors-after-upgrade-6/)
 * Status: not resolved