ErrorNotification.js : Cannot find context with specified id

[ChrisACD]

hello !
i am facing an issue with this message : errorNotification. js : Cannot find context with specified id , i wrote a simple code and I don't know how to handle this issues. any body can help!

$(document).ready(function(){

var $mainMenuItems = $("main-menu ul").children("li"),
    totalMainMenuItems = $mainMenuItems.length,
    openedIndex = -1,

    int = function() {
       
        $mainMenuItems.children(".images").click(function(){
          
            var newIndex = $(this).parent().index(),
            $item = $mainMenuItems.eq(newIndex),
            $colorImage = $item.find(".color");
            
            $colorImage.animate({left:"0px"}, 250);
            
        });
           
   };
 
 int();
  
});