Doesn't work with XCode 9 iOS11

[TheDarkRoom]

Swift Compiler Error against AudioKit: Module compiled with Swift 3.1 cannot be imported in Swift 3.2

I think this is because XCode 9 can only accept Swift 4.0 or Swift 3.2

Any ideas on how to resolve?

Thanks. Partita is such a great library and it's such a shame that it's stopped working.