Awaitable<> namespace not found

Hi. I’m doing a time sensitive project but I’ve been stuck on the error:

Library\PackageCache\com.unity.xr.arfoundation@6.0.0-pre.4\Runtime\ARSubsystems\Util\AwaitableUtils.cs(11,25): error CS0246: The type or namespace name ‘Awaitable<>’ could not be found (are you missing a using directive or an assembly reference?)

I’m making a simple AR game and I really need this to be resolved so that I can start testing for my first writeup.

AR Foundation 6 requires Unity 2023.2 or newer. Note our docs.

https://docs.unity3d.com/Packages/com.unity.xr.arfoundation@6.0/manual/project-setup/install-arfoundation.html#editor-compatibility