TypeError: values.map is not a function

[sumeetmobiwebtech]

How to solve this ?

i am using this 

<md-input-container>     
               <label for="name">Accounts:</label>    
               <select chosen multiple options="accountListData" on-change="doStuff"
                   ng-model="incomeFilters.account"
                   ng-options="ald.accountID as ald.accountHolderName for ald in accountListData" class="form-control">
               </select>
            </md-input-container>

But Getting this error in console after select------

angular.js:14700 TypeError: values.map is not a function
    at SelectController.writeNgOptionsMultiple [as writeValue] (angular.js:30513)
    at Object.ngModelCtrl.$render (angular.js:33327)
    at selectMultipleWatch (angular.js:33300)
    at Scope.$digest (angular.js:18253)
    at Scope.$apply (angular.js:18531)
    at HTMLButtonElement.<anonymous> (angular.js:27346)
    at HTMLButtonElement.dispatch (jquery.min.js:4)
    at HTMLButtonElement.r.handle (jquery.min.js:4)

[adityasharat]

can you share accountListData as a JSON here?

[ShindeSwapnali]

I am also getting the same error

HTML

                    <div ng-dropdown-multiselect="" options="myDropdownOptions " selected-model="myDropdownModel" extra-settings="myDropdownSettings" checkboxes="true" ></div>

$scope.myDropdownOptions = [{
id: "S",
label: "Standard"
}, {
id: "I",
label: "Intermediate"
}, {
id: "B",
label: "Best available"
}];
$scope.myDropdownModel = [$scope.myDropdownOptions[0]];

$scope.myDropdownSettings = {
    styleActive: true,
    checkBoxes: true,
    smartButtonTextProvider(selectionArray) {
        if (selectionArray.length === 1) {
            return selectionArray[0].label;
        } else {
            return selectionArray.length + ' Selected';
        }
    }
};