Trying to include FirebaseAuth as a cocoapods depe...

# multiplatform

[rocketraman]

Trying to include FirebaseAuth as a cocoapods dependency on my shared lib:

cocoapods {
    summary = "x"
    homepage = "x"
    frameworkName = "shared"
    ios.deploymentTarget = "13.0"
    pod("FirebaseAuth", "~> 7.6.0")
  }

but the build fails at linkDebugFrameworkIosX64 with:

error: Linking globals named 'cocoapods_FirebaseAuth_FIRAuthErrorDomain_getter_wrapper0': symbol multiply defined!

This was working fine with an older version of FirebaseAuth.

[rocketraman]

I think it's because I use GitLive Firebase Kotlin SDK in my project, and it references FirebaseAuth 7.3.0. I was also referencing FirebaseAuth in my cocoapods section (as I have some platform-specific code in iosMain in my shared lib), and there was a symbol conflict of some type. May also be related to how Firebase is linked: https://github.com/firebase/firebase-ios-sdk/blob/master/docs/firebase_in_libraries.md.

Removing FirebaseAuth from my cocoapods definition has solved the problem.

[rocketraman]

Somehow our build works, even though I don't think it should be! This is the comment I have in our cocoapods section in our shared `build.gradle.kts`:

// We don't reference FirebaseAuth here, because firebase-kotlin-sdk references and there appears to be some
    // strangeness happening at link time when adding the dependency here also:
    // error: Linking globals named 'cocoapods_FirebaseAuth_FIRAuthErrorDomain_getter_wrapper0': symbol multiply defined!
    // -- the build appears to work fine without this here, though I'm not exactly sure why as we have code that
    // references it.
    // see also: <https://github.com/GitLiveApp/firebase-kotlin-sdk/issues/111>
    //pod("FirebaseAuth", "~> 8.11.0")

[rocketraman]

Check your ios Podfile and import Firebase/Auth there e.g. pod 'Firebase/Auth', '~> 8.11.0'

[clark]

No luck moving it to the Podfile

This is my current cocoapods configuration in build.gradle.kts . I have tried every combination of having both of the commented out lines being enabled or not and nothing working quite yet.

cocoapods {
        summary = "*"
        homepage = "*"
        framework {
            isStatic = false // for SwiftUI preview
        }
        //  pod("FirebaseAuth", "~> 8.14.0")
        ios.deploymentTarget = "13.5"
        //  podfile = project.file("../ios/Podfile")
    }

Using kotlin version 1.7.0

[clark]

Is there a reason you use version 8.11.0 instead of 8.14.0?

[rocketraman]

Just haven't updated in a while

[rocketraman]

As a point of comparison, I don't have isStatic = false. In your podfile do you have use_frameworks!?

[clark]

Good to note. I do have use_frameworks! in my Podfile.

[rocketraman]

Do you have a reference to dev.gitlive:firebase-auth in your commonMain source set?

[clark]

val commonMain by getting {
  .
  .
  .
  // Firebase KMP (3rd party OSS)
  implementation("dev.gitlive:firebase-auth:1.6.1")
}

[rocketraman]

Looks pretty much the same though we're still on 1.4.3.

[clark]

Did you add the carthage related code to your build.gradle file from firebase-kotlin-sdk issue #111?

[rocketraman]

No, don't use carthage

[rocketraman]

I'm assuming you tried the usual stuff with resetting cocoapods? Something like:

rm -rf ~/Library/Developer/Xcode/DerivedData/
rm -rf ~/Library/Caches/CocoaPods/
cd iosApp
pod deintegrate
rm -rf iosApp.xcworkspace/
pod update

[clark]

I've only been doing the pod deintegrate step and cleaning gradle builds

[clark]

I'll try those out

[clark]

One other thing is we never use FirebaseAuth directly in iOS. Not sure if that would make a difference

[clark]

Also, do you test by building your app or running the packForXcode gradle task?

[rocketraman]

No, don't need packForXcode if you use cocoapods

[clark]

We don't have our project set up as cocoapods dependency for iOS. But maybe that is the issue.

[rocketraman]

Definitely. Do something like this in cocoapods in build.gradle.kts:

cocoapods {
  framework {
    baseName = "shared"
  }
}

and then in `Podfile`:

target 'iosApp' do
  pod 'shared', :path => '../shared'
  ...
end

[clark]

Giving this a try now. Will update when I have results.

[clark]

So I have my shared code imported as a Cocoapod now

[clark]

If I don't include the `pod("Firebase/Auth", "~> 8.14.0") in my shared build.gradle.kts then I get the

ld: framework not found FirebaseAuth

But if I do include it, then I start getting some other weird error:

Exception in thread "main" java.lang.Error: /var/folders/sy/kt1x1x3s7tnc93dj8b1bzbdc0000gn/T/6822736881599445461.m:1:9: fatal error: module 'Firebase' not found