错误信息：
System.IO.FileNotFoundException: Could not load file or assembly 'ClassIsland.Core, Version=2.1.1.1, Culture=neutral, PublicKeyToken=null'. 系统找不到指定的文件。
File name: 'ClassIsland.Core, Version=2.1.1.1, Culture=neutral, PublicKeyToken=null'
at System.Reflection.RuntimeAssembly.GetExportedTypes()
at ClassIsland.Services.PluginService.InitializePlugins(HostBuilderContext context, IServiceCollection services) in /_/ClassIsland/Services/PluginService.cs:line 186
