如何使用facebook api删除我的群贴？

这是我使用的函数：

function deletePost(post_id){
    $.confirm({
        text: "Are you sure want to delete this post?",
        confirm: function(button) {
            var params3 = {};
            params3['access_token'] = 'MY_ACCESS_TOKEN';                
            params3['method'] = 'DELETE';

            FB.api('/' + post_id + '', 'DELETE', params3,
             function(response) {
                console.log(response);
                if(response.error.message){
                    alert(response.error.message);
                }
                else{
                    alert("Successfully Deleted!");
                }
             });
        },
        cancel: function(button) {
        }
    });
}

我已在权限设置中使用了以下作用域： {范围：'email，publish\u stream，publish\u actions，read\u stream，manage\u page'}

我得到以下回应：

(#200) The user hasn't authorized the application to perform this action

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您是否使用应用程序本身创建了对象（post）？是！我从我的应用程序创建了帖子？