在我将 Xamarin 升级到最新版本 3.2.1 之后。构建项目时出现以下错误?有谁知道为什么?以及如何解决?
/Library/Frameworks/Mono.framework/Versions/3.2.1/lib/mono/4.0/Microsoft.CSharp.Targets(CoreCompile 目标)->
ViewModels/UserInfoViewModel.cs(101,17): 错误 CS0012: 类型System.Windows.Input.ICommand' is defined in an assembly that is not referenced. Consider adding a reference to assembly
System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e'
谢谢,