This version of Unity is unsupported.
Removed

Graphics.WaitOnGPUFence

Obsolete public static void WaitOnGPUFence(GPUFence fence, Rendering.SynchronisationStage stage = UnityEngine.Rendering.SynchronisationStage.PixelProcessing);

Description

This functionality is deprecated, and should no longer be used. Please use Graphics.WaitOnAsyncGraphicsFence.