# Missing argument 3 for wp_register_sidebar_widget()

I installed the Deprecated Calls plugin and it’s telling me to change register_sidebar_widget() and register_widget_control(), essentially add wp_ first.

I did but I’m getting Missing argument 3 for wp_register_sidebar_widget() and wp_register_widget_control()

Is it ok if I put the default none for the 3rd arg?

#### Solutions Collecting From Web of "Missing argument 3 for wp_register_sidebar_widget()"

The signature of newer function is different:

• register_sidebar_widget( $name,$output_callback, $classname ); • wp_register_sidebar_widget($id, $name,$output_callback, \$options );

Can’t simply replace one function with another here, need to re-order arguments accordingly.