Meta has released the new Meta XR All-in-One SDK v59 in the Unity Asset Store in recent days, and Oculus Integration has deprecated. However, when I install it from Unity Package Manager, there is an error log in the console indicating that "[Package Manager Window] Cannot perform upm operation: undefined == true [UpmError_NotFound]. UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()". Therefore, I can't successfully import Meta XR All-in-One SDK to my Unity. It is very strange. I tried Unity 2021.3.29, 2022.3.1, but it still can't work. Does anyone meet this problem?
I know it’s not the answer you are after but I have had no issues with importing. I tried with the latest release of Unity and the latest LTS. Is it possible it’s something that something else is impacting your editor interface? Can you import something else as a test? It just looks to me that the error you are seeing is more to do with Unity and the Packager Manager window not playing nice together.
Download & import
the old package