在为Ubuntu下载Mono 4.2(稳定版)之后,我在C#程序中导入系统库时出错,以建立与APNS服务器的连接(Apple推送通知).
要构建,我使用xbuild命令(无参数).
注意:构建在Windows 10上成功执行.
CSC: error CS0518: The predefined type `System.Object' is not defined or imported
CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
CSC: error CS0518: …