最新升级最新的vs2017后发现编译xamarin forms 会出现错误 Xamarin.Forms.Build.Tasks.GetTasksAbi task could not be loaded from the assembly C:\Repos\Project\packages\Xamarin.Forms.2.5.0.122203\build\portable 解决办法非常简单 安装.net 4.7.1 即可 https://www.microsoft.com/net/download