Installed in CocoaPods and having compile issues

Hello, 
I installed it, and while running it in Swift 4.2, I keep getting the following error. I get it on both MemberQuery.swift and PredicateBuilder.swift 

/Pods/PrediKit/Sources/Queries/MemberQuery.swift:48:26: Cannot invoke initializer for type 'String' with an argument list of type '(T.Type)'

Please Help!