Swift Compiler Error / Unable to Build Module in XCode

Hello everyone

Firstly, I'm aware this is an error within XCode rather than Unity, but it is a Unity project built on a Mac for use on iOS. It is an augmented reality project, using AR Foundation and a few other plugins (Native Gallery, Native PDF, Native Toolkit, Super Pivot, Inspector Gadgets). It builds fine on Windows for Android, and the iOS project builds fine in Unity, but when I come to compile in XCode and deploy to our test device, it comes back with the below errors.

I've tried multiple solutions I found online but none seem to work. Can someone suggest anything? Something needed to be changed in Unity or XCode? Something not installed on the Mac? An issue with a plugin?

Many thanks!

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