When I launch nop.web from Visual studio 2019 I get error "unknown Host"

Context :

1. Visual studio 2019
2. NopCommerce solution
3. IIS Express as a local web server

When I launch nop.web from Visual studio 2019 I get error "unknown Host"

The error :

System.AggregateException
  HResult=0x80131500
  Message=One or more errors occurred. (Unknown Host)
  Source=System.Private.CoreLib
  StackTrace:
   at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   at Nop.Web.Areas.Admin.Factories.HomeModelFactory.<PrepareNopCommerceNewsModel>b__9_0() in D:\100 Perso\000 Business\000 Pharma B2B DZ\00 Resources\nopCommerce_4.20_Source\src\Presentation\Nop.Web\Areas\Admin\Factories\HomeModelFactory.cs:line 84
   at EasyCaching.InMemory.DefaultInMemoryCachingProvider.BaseGet[T](String cacheKey, Func`1 dataRetriever, TimeSpan expiration)
   at EasyCaching.Core.EasyCachingAbstractProvider.Get[T](String cacheKey, Func`1 dataRetriever, TimeSpan expiration)

Inner Exception 1: HttpRequestException: Unknown Host

Inner Exception 2: SocketException: Unknown Host