Cannot use Redis cache in Dotnet Core 3.0

Question

according to the Distributed caching in ASP.NET Core

It is said I can using Microsoft.Extensions.Caching.StackExchangeRedis and using services.AddStackExchangeRedisCache in ConfigureServices

However the namespace Microsoft.Extensions.Caching.StackExchangeRedis not exists on dotnet core 3.0.

there is only using Microsoft.Extensions.Caching.Memory; and using Microsoft.Extensions.Caching.Distributed; exists

Answer 1

https://learn.microsoft.com/en-us/aspnet/core/performance/caching/distributed?view=aspnetcore-3.0#prerequisites

The Prerequisits section higher up in the linked document state you need to add a reference to the package Microsoft.Extensions.Caching.StackExchangeRedis