如何构建使用Xamarin.Forms.Maps的Android项目？

我用.Net标准2.0创建了一个新的Xamarin表单解决方案 没问题

然后添加一个NuGet Xamarin.Forms.Maps：

并显示此生成错误：

Severity    Code    Description Project File    Line    Suppression State
Error       An error occurred trying to install required android components on Project 'eCidadaoMobile.Android'.
Project 'eCidadaoMobile.Android' requires the following components installed on your machine: 
Xamarin.GooglePlayServices.Base
JavaLibraryReference: https://dl-ssl.google.com/android/repository/google_m2repository_r24.zip-m2repository/com/google/android/gms/play-services-base/8.4.0/play-services-base-8.4.0.aar-8.4.0
AndroidResources: https://dl-ssl.google.com/android/repository/google_m2repository_r24.zip-m2repository/com/google/android/gms/play-services-base/8.4.0/play-services-base-8.4.0.aar-8.4.0
Xamarin.GooglePlayServices.Basement
JavaLibraryReference: https://dl-ssl.google.com/android/repository/google_m2repository_r24.zip-m2repository/com/google/android/gms/play-services-basement/8.4.0/play-services-basement-8.4.0.aar-8.4.0
AndroidResources: https://dl-ssl.google.com/android/repository/google_m2repository_r24.zip-m2repository/com/google/android/gms/play-services-basement/8.4.0/play-services-basement-8.4.0.aar-8.4.0
Xamarin.GooglePlayServices.Maps
JavaLibraryReference: https://dl-ssl.google.com/android/repository/google_m2repository_r24.zip-m2repository/com/google/android/gms/play-services-maps/8.4.0/play-services-maps-8.4.0.aar-8.4.0
AndroidResources: https://dl-ssl.google.com/android/repository/google_m2repository_r24.zip-m2repository/com/google/android/gms/play-services-maps/8.4.0/play-services-maps-8.4.0.aar-8.4.0


Please double-click here to install it.

Intallation Errors: XA5207 Please install package: 'GPS Base' available in SDK installer. Java library file 'C:\Users\tonyv\AppData\Local\Xamarin\Xamarin.GooglePlayServices.Base\8.4.0\embedded\classes.jar' doesn't exist.
XA5207 Please install package: 'GPS Basement' available in SDK installer. Java library file 'C:\Users\tonyv\AppData\Local\Xamarin\Xamarin.GooglePlayServices.Basement\8.4.0\content\classes.jar' doesn't exist.
XA5207 Please install package: 'GPS Maps' available in SDK installer. Java library file 'C:\Users\tonyv\AppData\Local\Xamarin\Xamarin.GooglePlayServices.Maps\8.4.0\content\classes.jar' doesn't exist.         0   

如果我双击错误消息，什么也不会发生

---

如何以及在何处安装这些所需文件？

在路径

C:\Users\UserName\AppData\Local\Xamarin

下，删除

Xamarin.GooglePlayServices

文件夹，以便在下次启动时重新下载它们。

您是否尝试删除AppData/Local/Xamarin路径中的Xamarin.GooglePlayServices文件夹？它应该在下一次启动时重新下载嘿，它成功了。请将此评论作为答案发布，以便我可以标记为答案。