我遇到了同样的问题.我的问题是未启用iOS专用的Google Maps SDK:/

I had the same issue. My problem was the Google Maps SDK for iOS wich was not enabled :/

因此请小心API密钥(以及相关的捆绑软件ID)，并检查是否激活了正确的API.

So be carefull of the API key (and the associated bundle ID) and check if the right API is activated.