why

[xcd1111232]

System.InvalidOperationException:“Current JobStorage instance has not been initialized yet. You must set it before using Hangfire Client or Server API. For .NET Core applications please call the IServiceCollection.AddHangfire extension method from Hangfire.NetCore or Hangfire.AspNetCore package depending on your application type when configuring the services and ensure service-based APIs are used instead of static ones, like IBackgroundJobClient instead of BackgroundJob and IRecurringJobManager instead of RecurringJob.”