I have Xcode 13.1 installed running app from flutter on iOS simulator gives issue such module compiled by Swift 5.3.2 cannot be imported by Swift 5.5.1. Even though changing from swift version from Build Setting could not solve problem.
<unknown>:0: error: unable to load standard library for target 'arm64-apple-ios9.0' /Users/thereameekey/flutter/.pub-cache/hosted/pub.dartlang.org/couchbase_lite-3.0.0-nullsafety.2/ios/Classes/CBManager.swift:10:8: error: module compiled with Swift 5.3.2 cannot be imported by the Swift 5.5.1 compiler: /Users/thereameekey/tass/tassovec/ios/Pods/CouchbaseLite-Swift/iOS/CouchbaseLiteSwift.framework/Modules/CouchbaseLiteSwift.swiftmodule/arm64.swiftmodule import CouchbaseLiteSwift