'ISystemWebAdapterBuilder' does not contain a definition for 'AddJsonSessionKeySerializer' (1.0.0-rc.1.22477.1)

[br3nt]

Describe the bug

For Microsoft.AspNetCore.SystemWebAdapters.CoreServices version 1.0.0-rc.1.22477.1.

Following along with Configuration Changes section of Migrating from ASP.NET to ASP.NET Core (Part 4), the following error message is presented:

'ISystemWebAdapterBuilder' does not contain a definition for 'AddJsonSessionKeySerializer' and no accessible extension method 'AddJsonSessionKeySerializer' accepting a first argument of type 'ISystemWebAdapterBuilder' could be found (are you missing a using directive or an assembly reference?)

To Reproduce

Use the Migration Project feature to create a new .Net core project based of existing .NET Framework project.

Copy the blog post example into Program.cs.

Error message appears.

Exceptions (if any)

Just the error message.

Further technical details

Please include the following if applicable:

ASP.NET Framework Application:

• Technologies and versions used (i.e. MVC/WebForms/etc): MVC
• .NET Framework Version: 4.8

ASP.NET Core Application:

• Microsoft.AspNetCore.SystemWebAdapters.CoreServices version: 1.0.0-rc.1.22477.1
• Targeted .NET version: net6.0
• .NET SDK version: as per migration tool

[br3nt]

It's meant to be AddJsonSessionSerializer