Use ".NET 4.x Equivalent" for VCI and VRM creation

When creating VCI and VRM, no matter what version of Unity you are using you must always change the version of .NET to a specific version.
As of now, use .NET 4.x Equivalent.

1. On Unity menu bar, select
   [Edit] > [Project Settings] > [Player] to open [PlayerSettings].
2. On [Configuration], change the [Scripting Runtime Version] drop down to
   [.NET 4 Equivalent].
   
3. You will be asked to restart Unity.
   Restart Unity to change the version of .NET.