javascript - ionic.bundle.js :25642 Error: [ngRepeat:iexp] Expected expression in form of '_item_ in _collection_[ track by _id_]' but got 'cdata.catagoriesdata'

Question

我正在尝试创建一个 ionic 移动应用程序，因为我在 ng-repeat 中遇到错误，错误是

ionic.bundle.js:25642 Error: [ngRepeat:iexp] Expected expression in form of 'item in collection[ track by id]' but got 'cdata.catagoriesdata'

请任何人帮我解决这个问题，然后我在下面添加了我的代码

.controller('categoriesdatactrl', ['$scope', '$stateParams', // The following is the constructor function for this page's controller. See https://docs.angularjs.org/guide/controller
// You can include any angular dependencies as parameters for this function
// TIP: Access Route Parameters for your page via $stateParams.parameterName
function ($scope, $stateParams) {
   $scope.catagoriesdata=[{"title":"anandan"},{"title":"anandan1"}];

}])

<ion-view title="Categories" id="page3">
    <ion-content padding="true" class="has-header">
        
        <ion-list id="categories-list2" ng-repeat="cdata.catagoriesdata">
            <ion-item class="item-thumbnail-left assertive" id="categories-list-item20" >
                 
                <h2>{{cdata.title}}</h2>
            </ion-item>
                    
        </ion-list>
    </ion-content>
</ion-view>

Answer 1

像这样改变你的 ng-repeat

ng-repeat="cdata in catagoriesdata track by $index"