Solving: ‘Undefined variable: menu_id’ in JetPack Mobile Theme Custom Menu

[quads id=5]

Hi, this is a ‘Quick & Dirty’ but working Fix for the ‘Undefined variable: menu_id’ Issue in JetPack Mobile Theme Custom Menu setup.

1. Edit the Main functions.php
   And this procedure need to be Repeated after each Plugin Update…
   Here I shows you how to do it by the Nix Command Line:

   sudo nano [SITEROOT]/wp-content/functions.php

   Just Replace [SITEROOT] with your Site’s Root Path.

2. Search & Change
   The Line containing:

   return array( 'primary' => apply_filters( 'jetpack_mobile_theme_menu', $menu_id ) );

   Ctrl+w to Search for ‘$menu_id’.
   And Change in:

   return array( 'primary' => apply_filters( 'jetpack_mobile_theme_menu', '0' ) );

   Finally, Ctrl+o to Save changes or Ctrl+x to Save & Exit.