perform multiple changes on a table through batch...But it doesn't work

Hi Experts,

I had created a table and then fetch data from xsodata service. I have performed multiple changes in my table and then submit through batch methods. But it doesn't work it shows the following error. please check my code and help me...:)

Error : 2015-12-12 16:34:32 The following problem occurred: no handler for data -

var oChange2 = Model.createBatchOperation("oPath", "PUT", UpdateValue, oData);

var oChange3 = Model.createBatchOperation("oPath", "DELETE", LastName, oData);

                       //@@@@@@@@@@@@@@//

                       var oReadOperations = [oChange2,oChange3];

                       Model.addBatchChangeOperations(oReadOperations);

                       Model.submitBatch(function(oData){

                         oModel.refresh();

                         console.log("success?:" + oData);

                         },function(err){

                                alert("error occurred: " + err);

                          });

                }

Thanks & Regards, Lakshman.