How to integrate Facebook SDK to Unreal Engine 4's Online Subsystem Facebook?

I want help with the steps to integrate Facebook Android SDK in unreal engine 4 - Online Subsystem Facebook. getting below error while compiling for android;

LogPlayLevel: Facebook SDK not found in C:\Program Files\Epic Games\UE_4.26\Engine\Restricted/NotForLicensees/Plugins/Online/OnlineSubsystemFacebook/Source/ThirdParty/Android/FacebookSDK

Thanks in advance.

Did you ever find an answer?
I have the same problem. Please help me if it is resolved!!