在Mac上的C#上使用DotNetZip压缩文件

我试图在使用DotNetZip的mac上使用以下代码片段在C#中压缩文件或目录。 但是下面我有一些例外,我做错了什么?

using Ionic.Zip; namespace CSLab { class Program { static void Main(string[] args) { using (ZipFile zip = new ZipFile()) { zip.Password = "password"; zip.AddDirectory("./test"); zip.Save("a.zip"); } } } } Unhandled Exception: System.ArgumentException: 'IBM437' is not a supported encoding name. For information on defining a custom encoding, see the documentation for the Encoding.RegisterProvider method. Parameter name: name at System.Globalization.EncodingTable.GetCodePageFromName(String name) at System.Text.Encoding.GetEncoding(String name) at Ionic.Zip.ZipFile..ctor() at CSLab.Program.Main(String[] args) in bash: line 1: 17217 Abort trap: 6 "/usr/local/share/dotnet/dotnet" "/usr../bin/Debug/netcoreapp2.0/CSLab.dll"