SDK updater failed: stdout

I am getting this error in the console on loading unity. Can someone please tell me why am I getting this error.

SDKUpdater failed: stdout: stderr:

System.Threading.RegisteredWaitHandle:smile:oCallBack(Object)

You should run Unity as Administrator

How do we do that on Ubuntu Linux?

I am now getting that error on load. Makes no difference running as admin (Windows, Unity 2018.2.15f1).

Getting this meself, admin too. Running on win10.

Go to “PlayerSettings”, set the “Facebook SDK version” parameter and restart Unity.
That fixed the issue for me.

I gotta the same issue on Linux. I ran Untiy as admin once and that fixed the problem. Notice, DO NOT use Unity 3d as admin in a regular base!