jquery ui autocomplete. with error

jquery ui autocomplete. with error

hi
I m using jquery ui autocomplete.
I have a problem :-(
Output the list for me is not displayed and the following error appears:
 5 results are available, use up and down arrow keys to navigate.
I use css code :
.ui-autocomplete-input {
  z-index: 999;
but




not resolved .
please help me

my code:

$( "#TextKey" ).autocomplete({
        source: function( request, response ) {
            $.ajax({
                url: '<%=getAllFriend%>',
                type: 'GET',
                dataType: 'json',
                data:  {"CharacterText" : $('#TextKey').val(),
                    style: "full",
                    maxRows: 15},
                    contentType: "application/json; charset=utf-8",                     
                    success: function( data )
                    {
                    response( $.map( data.rows, function( item ) {

                        return {
                           
                            label: item.nameOfUser +" "+item.familyOfUser,
                            value: item.nameOfUser +" "+item.familyOfUser,
                            desc: item.countryOfUser +"  "+"  "+item.cityOfUser,
                            image: item.profileAddressOfUser,
                            hiddenId:    item.idOfUser

                        }

                    }));

                }
            });
        },
       
        focus: function( event, ui ) {
            $( "#TextKey" ).val( ui.item.label );
                 return false;
            },
           
        minLength: 1,
        select: function( event, ui ) {
            log(ui.item.hiddenId);
        }
    
    }).data( "ui-autocomplete" )._renderItem = function( ul, item )
    {
        var inner_html = ' <a><div class="list_item_container">'+
       ' <div class="image"><img id="pic" src="' + item.image + '"></div>'+
       '<div class="label">' + item.label + '</div><div class="description">' + item.desc + '</div></div></a>';
        return $( "<li></li>" )
            .data( "item.autocomplete", item )
            .append(inner_html)
            .appendTo( ul );
    };
});