firebaser here
Sorry about any confusion this may be causing.
Crashlytics is a part of Fabric, and is becoming a part of Firebase. Firebase Crash Reporting is the previous crash reporter in Firebase, but has been deprecated and removed.
At this point you should be able to do everything from the Firebase console, following the instructions here: https://firebase.google.com/docs/crashlytics/
At the moment that means you need these two pods:
# Pods for PodTest
pod 'Fabric', '~> 1.7.11'
pod 'Crashlytics', '~> 3.10.7'
The Crashlytics SDK is currently compatible in both Fabric and Firebase, but requires the Fabric SDK as a result. In early 2019, we plan on shipping a new Crashlytics SDK that is optimized for Firebase and will have the Fabric dependency removed. When updating to that version of the SDK, then you'll be able to remove pod 'Fabric' and everything will be simpler.
Fabric
andCrashlytics
both not required, just use thispod 'Firebase/Crashlytics'
So no confusion for developers.... firebase.google.com/docs/crashlytics/… – Clausewitz