ExtJs 5 Sencha-Charts adding listener -


hi having hard time figure out what's wrong on sencha-chart bug or syntax error. start have application uses new sencha-charts of extjs 5. after adjusted came ff codes working problem when add listener it, listener event not working. please can me on this.:

items: [{         cls: 'chartclass',         xtype: 'chart',         flex: 1,         interactions: [{         type: 'panzoom',         zoomonpangesture: false,         axes: {             left: {                 maxzoom: 1             }         }     }],         bind: '{chartstore}',         minheight: 350,         animation: true,         style: 'background: #fff',         insetpadding: '40px 40px 20px 30px',         width: '100%',         height: 500,         insetpadding: 40,          interactions: 'itemhighlight',        axes: [{         type: 'numeric',         position: 'left',         fields: ['utilcost'],         fontsize: 12,         grid: true,         minimum: 0     }, {         type: 'category',         position: 'bottom',         fields: ['date'],         label: {                 rotate: {                     degrees: -90                 }             }     }],      //series     series: [{         type: 'bar',                 xfield: ['date'],         yfield: ['utilcost'],         style: {                  mingapwidth: 15,                 opacity: 0.80         },         highlight: {                 strokestyle: 'black',                 fillstyle: '#c1e30d',                 linedash: [5, 3]         },          tooltip: {                 trackmouse: true,                 style: 'background: #fff',                 renderer: function(storeitem, item) {                     var title = item.series.gettitle();                     this.sethtml(storeitem.get(item.series.getyfield()));                 }             },           label: {                 field: 'utilcost',                 display: 'insideend'             },         listeners:{                        itemmouseup: function(item){                     alert('working');                     }           }       }];

no error on console log. elements working except firing event.please please help. i've tried lots of solution none of work. thank you


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