voceconnect/voce-cached-nav — pull request #4 by nattyait (2013-10-07 10:27:29+00:00)
Title: if trying to use voce_cached_nav_menu to replace wp_nav_menu in my code,...

... I always get NULL value. So, I put return in voce_cached_nav_menu and it's working correctly.

This line in my code that I replace:

$html = '<' . $navtype . $navclass . '>' . wp_nav_menu( $wp_nav ) . '';

Then I replaced it to:

$html = '<' . $navtype . $navclass . '>' . voce_cached_nav_menu( $wp_nav ) . '';

and it's just working correctly to print out my nav menu.