Fatal error in Unity CIL Linker....Error processing method:

Unity.2020.2.6f1 Both pc and android builds works fine only IOS platform build gives this error on building. I am on windows 10. IOS SDK downloaded after project done.

SWnetwork comming from https://docs.socketweaver.com/

I am facing this same error. but for Android.
Did you happen to find a solution for this?