While trying to upgrade wordpress to 3.3.1 I got the following Fatal Error
Fatal error: Call to undefined function is_rtl() in /home/username/public_html/wp-includes/general-template.php on line
While trying to visit dashboard (after the upgrade or trying to configure other plugins, above Fatal Error was displayed.
Fix – Popup Domination Plugin
If you have Popup Domination Plugin installed, then you are more likely to see the above Fatal Error.
- FTP to your plugins folder
- Rename Popup Domination Plugin Folder Name
- Example popup-domination to popup-domination-deactivated
- Try visiting wordpress dashboard
- Everything should work as expected.
nice its work also you can just comment line where error occur i.e
/*
if ( is_rtl() )
echo apply_filters( ‘wp_admin_css’, “n”, “$file-rtl” );
*/