services.AddHostedService<LifetimeEvents>(); .}'IServiceCollection' does not contain a definition for 'AddHostedService' and no extension method我似乎找不到合适的名称空间来使用或nuget包来实现这个功能,但
当尝试实例化时 private ILogger<MyClass> Logger {get;}在试图激活“MyClass”时, System.InvalidOperationException: 'Unable to resolve service for type 'Microsoft.Extensions.Logging.Logger1我知道ILogger<T>