Mopub Mediation iOS

Hey guys, I'm currently trying to implement Mopub as a mediator for 2 ad networks, Admob and Applovin.

The implementation for ADmob and Applovin are easy enough but when trying to work in the Mopub sdk I seem to get all sorts of problems, I've been through this tutorial: https://github.com/mopub/mopub-unity-ios-plugin

But no matter what i do I seem to get Xcode build errors, after dragging in the files into Xcode, then I seem to get problems with the 'weak property', surely it shouldn't be this difficult to implement. I've spent the whole day browsing trying to work it out and it seems very hacky.

Has anyone had any experience with integrating MoPub into their iOS apps?