gridstack Uncaught TypeError: Cannot set property '_id' of undefined

[chakravarthyecanarys]

Hello, I getting this error - gridstack.js:377 Uncaught TypeError: Cannot set property '_id' of undefined

my JSON is as follows

[
{
"x": 1,
"y": 0,
"id": "4",
"nid": 14,
"width": 5,
"height": 3
},
{
"x": 4,
"y": 6,
"id": "8",
"nid": 15,
"width": 8,
"height": 3
}
]

and code is as follows -

var grid = jQuery('.grid-stack').data('gridstack');

grid.addWidget(jQuery('

Delete

'), sobj.x , sobj.y, sobj.width, sobj.height,false);
jQuery(".grid-stack-item").attr("id",sobj.nid);

jQuery(document).on( "click", ".grid-stack-item", function() {
//jQuery(this).addClass("activ");
var gridster = jQuery('.grid-stack').data('gridstack');
console.log(gridster);
gridster.removeWidget( jQuery(this).parent());
});

I wan to remove widget when click on swclose or atleast on widgte . so Please help in this . Thank you .

[2Owy]

Lol :)) This is gridster not gridstack :)