如何在工厂使用ng-file-upload？

Question

我试图将工厂添加到我的＆＃34; ng-file-upload＆＃34;控制器（实际上是他们文档中的复制粘贴）......但不幸的是它不能为我工作

以下是一些代码示例

厂：

weekly_report_app.factory('sharedData', function () {

    var data = {
        value: "initial value"
    };

    return {
        getValue: function() { 
           return data.value; 
        },
        updateValue: function(value) {
           data.value = value;
        }
    };
});

控制器：

weekly_report_app.controller('uploadCtrl', [ '$scope', 'Upload', 'sharedData',  function($scope, Upload, sharedData) {

   $scope.attachments_counter = 0;

   $scope.$watch('files', function () {
       $scope.upload($scope.files);
   });  

    $scope.upload = function (files) {
      if (files && files.length) {
        for (var i = 0; i < files.length; i++) {
            $scope.attachments_counter++;

            sharedData.getValue(); // Error: [$injector:unpr] http://errors.angularjs.org/1.3.10/$injector/unpr?p0=sharedDataProvider%20%3C-%20sharedData%20%3C-%20uploadCtrl
            var file = files[i];
            Upload.upload({
                url: 'uploads',
                fields: {
                            'username': "test_name",
                            'team': "test_team",
                            'project_name': "test_project",
                            'task_name': "test_task"
                        },
                file: file
            }).progress(function (evt) {
                var progressPercentage = parseInt(100.0 * evt.loaded / evt.total);
                console.log('progress: ' + progressPercentage + '% ' + evt.config.file.name);
            }).success(function (data, status, headers, config) {
                console.log('file ' + config.file.name + 'uploaded successfuly. Response: ' + data);
            });
        }
    }
};
}]);

我做错了什么？