You might get this error “the parent theme is missing. Please install the [theme name] parent theme.” This happens when you have changed the name of your default folder. In order to get this working on your child them Lets assume this is your folder structure wp-content – myTheme
/* Theme Name: myTheme2015 Theme URI: # Author: Shovan Sargunam Author URI: http://shovan.co.uk Version: 4.2.1 Description: */
/* Theme Name: myTheme2015 Child Theme URI: # Description: Child theme for the myTheme2015 Author: Theme URI: # Template: myTheme Version: 4.2 */
Template: myTheme should be folder name of your parent theme. in this case myTheme and NOT myTheme2015 (which is theme name in style.css) this will get rid of the parent theme is missing. Please install the * parent theme error on wordpress.