Bug 'Camera' does not contain a definition for 'ScreenPointToRay'

error CS1061: 'Camera' does not contain a definition for 'ScreenPointToRay' and no accessible extension method 'ScreenPointToRay' accepting a first argument of type 'Camera' could be found (are you missing a using directive or an assembly reference?)

 

https://docs.unity3d.com/ScriptReference/Camera.ScreenPointToRay.html

Since you did not post any code, here is how you should handle the function.