How to create a child theme?

Create following folder here:

wp-content/themes/wildcommunity-child/

with following folders and files

admin/
font/
images/
js/
functions.php
options.php
screenshot.png
style.css

Open style.css and paste following code:

/*
Theme Name: WildCommunity Child Theme
Tags: buddypress, two-columns, right-sidebar, fixed-width, flexible-width
Template: WildCommunity
*/

/* Inherit the default theme styles */
@import url( ../WildCommunity/style.css );

Open functions.php and remove whole code.