Firebase/Messaging Unable to Install for watchOS

[jakeholland]

Step 1: Describe your environment

• Xcode version: 11.3.1
• Firebase SDK version: 6.16.0
• Firebase Component: Messaging
• Component version: 4.2.0
• Installation method: CocoaPods

Step 2: Describe the problem

It is my understanding that starting with 6.15.0, FCM supports watchOS. I have been trying to install that pod in my standalone watch app but I am running into problems immediately. Adding the pod to the podfile and running pod install leads to the following error:

[!] The platform of the target `Example WatchKit App Extension` (watchOS 6.0) is not compatible with `Firebase/Messaging (6.16.0)`, which does not support `watchOS`.

Steps to reproduce:

1. Create a project with a standalone watch app.
2. Run pod init
3. Update the pod file to include Firebase/Messaging for the watch app extension
4. Run pod install

Relevant Code:

Podfile

inhibit_all_warnings!
use_frameworks!

target 'Example' do
  platform :ios, '12.0'
  pod 'Firebase/Messaging'
end

target 'Example WatchKit App Extension' do
  platform :watchos, '6.0'
  pod 'Firebase/Messaging'
end

Example Project
Example.zip

[charlotteliang]

@jakeholland can you try pod FirebaseMessaging to see if it works for you?

@paulb777 I wonder if it's the subspec setting for 'pod Firebase/Messaging' not setup properly. But 'pod FirebaseMessaging' should work.

[jakeholland]

@chliangGoogle - Looks like that did the trick! Thank you 😊

[paulb777]

Yes the Firebase pod likely needs to be updated to accept watchos for the Messaging subspec

I'll reopen to track.