FirebaseCoreExtension pod is missing unless you install Firebase/Storage pod.

[russellwheatley]

Step 0: Are you in the right place?

• For issues or feature requests related to the code in this repository
  file a GitHub issue.
  • If this is a feature request please use the Feature Request template.
• For general technical questions, post a question on StackOverflow
  with the firebase tag.
• For general (non-iOS) Firebase discussion, use the firebase-talk
  google group.
• For backend issues, console issues, and other non-SDK help that does not fall under one
  of the above categories, reach out to
  Firebase Support.
• Once you've read this section and determined that your issue is appropriate for
  this repository, please delete this section.

[REQUIRED] Step 1: Describe your environment

• Xcode version: 13.4.1
• Firebase SDK version: 9.2.0 (Started to appear in => 9.0.0)
• Installation method: CocoaPods (select one)
• Firebase Component: Core
• Target platform(s): iOS (haven't checked the others)

[REQUIRED] Step 2: Describe the problem

Steps to reproduce:

At FlutterFire, we need to use the FirebaseCoreExtension pod which ought to come as a dependency of Core. It doesn't appear unless you also have Firebase/Storage pod installed.

I've created a repo with steps to follow to show you the reproduction. I believe it is a bug, but maybe it is by design.

Relevant Code:

https://github.com/invertase/firebasecoreextension-issue

[paulb777]

This is by design. FirebaseCoreExtension is only needed for Firebase libraries with Swift implementations, which is currently Storage and Functions.

I'll close the issue, but feel free to continue the discussion.