Sample project for CouchbaseLite 3.1.1 to reproduce issue: undefined symbols for architecture arm64: "OBJC_CLASS$_CBLReplicatedDocument". Xcode 14.3.1 macOS 13.4.1 CBL ObjC 3.1.1 Sections of interest: TestCouchbase3/TestCouchbase3/ViewController.m Line 25 in fe65e50 NSLog(@"%@", NSStringFromClass([CBLReplicatedDocument class])); TestCouchbase3/TestCouchbase3/ViewController2.swift Line 20 in fe65e50 for aDoc in repl.documents {