Facebook API SDK 3.0“应用程序出错”
我正在与facebook进行ios整合，我刚刚添加了Facebook登录。我可以使用我的Facebook帐户登录，
I am doing ios integration with facebook and I just added Facebook login. i am able to login with my facebook account,
但是我的朋友测试了它，当他尝试时，它会给出错误消息发生错误。请稍后再试。
but my friend tested it, when he tries it, it gives him the error message that says "An error occured. Please try again later."
但是，当我尝试使用自己的Facebook帐户登录时，我能够成功注册。所以我不确定是什么问题。
However, when I tried to login myself with my own Facebook account, I was able to register successfully. So I'm not sure what's wrong.
有人可以提供任何解决方案吗？
Can someone give any solution ?
我的应用程序遇到了同样的错误，
i was facing the same error with my app,
我发现Sandbox Mode标志设置为true，导致此错误，
它设置只有开发人员可以使用那里的帐户登录，
i found that "Sandbox Mode" flag is set to true, it was causing this error, it sets that only developer can use there account to signin,
将其设置为false，你就完成了！
set it to false, and you are all done!!!
可能会对你有所帮助：）
may be it will help you :)