Not Working error

[afsatechnical]

return ScopedModelDescendant<CartModel>( builder: (context, child, model) { return Card( child: Column( children: <Widget>[ Image.network( 'http://192.168.29.11/apisync/image/product/' + _product[index]['img'], fit: BoxFit.fill, height: 350.0, width: 1000.0, ), Text(_product[index].name, style: TextStyle(fontWeight: FontWeight.bold),), Text("$"+_product[index].price.toString()), RaisedButton( child: Text("Add"), onPressed: () => model.addProduct(_product[index])) ])); });