Carthageがbitcode無しなのはこのIssueなんだけど、よくわからんかった https://github.com/firebase/firebase-ios-sdk/issues/911

Carthage Firebase.framework does not contain bitcode. · Issue #91...

When installed through Carthage, Firebase.framework/Firebase' does not contain bitcode. My Environment Xcode version: 9.2 Firebase SDK version: 4.9.0 (Carthage) Firebase Component: Core, Analyt...