Kendo tooltip showing error in console -

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i have written code kendo tooltip , showing error -

uncaught typeerror: object [object object] has no method 'kendotooltip'

it editable listview in kendowindow.

here code 

<span style="float: right; margin-top: 4px;">         <a id="mortgage_add_row" href="#"><img src="<?php echo static_dir; ?>images/icon7.png" alt="" height="36" width="37"></a>         <a id="mortgage_delete_row" href="#"><img src="<?php echo static_dir; ?>images/icon8.png" alt="" height="36" width="37"></a>         <a id="mortgage_edit_row" class="k-edit" href="#"><img src="<?php echo static_dir; ?>images/icon9.png" alt="" height="36" width="37"></a>         <a id="mortgage_save_row" class="k-insert" href="#"><img src="<?php echo static_dir; ?>images/icon10.png" alt="" height="36" width="37"></a>     </span><div class="clear"></div>

these links crud buttons , bound respective actions. 

$(document).ready(function() {  // other code.  // add row         $("#mortgage_add_row").on("click", function(event) {             event.preventdefault();             mortage_listview.add();         });          // delete row         $("#mortgage_delete_row").on("click", function(event) {             event.preventdefault();             mortage_listview.remove(mortage_listview.element.children().first());             if (datasource.total() < 1) {                 mortage_listview.add();             } else {                 datasource.read();             }         });          // edit row         $("#mortgage_edit_row").on("click", function(event) {             event.preventdefault();             mortage_listview.edit(mortage_listview.element.children().first());         });          // save row         $("#mortgage_save_row").on("click", function(event) {             event.preventdefault();             mortage_listview.save();         });          if (!kendowindow_mortgage.data("kendowindow")) {             kendowindow_mortgage.kendowindow({                 width: "520px",                 title: ""             });         }          $("#mortgage_add_row").kendotooltip({             content: "hello!"         });  });

any appreciated.

thanks.


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