我想上传图像，到Cloudinary，直接从相机在离子使用 cordova 相机插件。我得到一个代码1的错误，有消息“上传预设必须在白名单为未签名的上传。”如何解决这个错误。请帮助。
我编辑的js代码是：

$scope.cameraopen = function(){
   var options = {
         quality : 100,
         destinationType : Camera.DestinationType.FILE_URI,//FILE_URI
         sourceType : Camera.PictureSourceType.CAMERA,
         allowEdit : false,
         encodingType: Camera.EncodingType.JPEG,
         popoverOptions: CameraPopoverOptions,
         targetWidth: 500,
         targetHeight: 500,
         saveToPhotoAlbum: true
     };
$cordovaCamera.getPicture(options).then(function(imageData) {

var Uploadoptions = {
              upload_preset: cloudinary.config().upload_preset,
              tags: 'mytag',
              context: 'photo=photo', 
              file: imageData
            };

       var onUploadSuccess = function(data){
        console.log("success"+JSON.stringify(data));
       }
       var onUploadFail = function(e){
        console.log("error"+JSON.stringify(e));
       }

       var ft = new FileTransfer();
 ft.upload(imageData, "http://api.cloudinary.com/v1_1/" + cloudinary.config().cloud_name + "/upload", onUploadSuccess, onUploadFail, Uploadoptions, true); 
    }, function(err) {
      // error
    });
}