下面是另一回事注意：我注册了相同的SHA1哈希值有两个不同的API项目。 （是的，我知道这是愚蠢的，但我尝试用不同的方法来解决问题。）

Here's another thing to watch out for: I registered the same SHA1 hash with two different API projects. (Yes, I know this is silly, but I was experimenting with different ways to fix a problem.)

我提到这一点在这里，因为你可能有正确配置一切，但你有一个以上的关键就谷歌API控制台项目。 （这里的希望这个愚蠢的错误不会发生在你身上。）

I mention this here, because you may have everything properly configured but you have MORE THAN ONE key for your project on Google's API console. (Here's hoping this silly mistake doesn't happen to you.)