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kotlinlang

Hi, I'm trying to follow <https://medium.com/@carlosgub/how-to-implement-firebase-firestore-in-kotlin-multiplatform-mobile-with-compose-multiplatform-32b66cdba9f7|this tutorial >to add `firebase-kotlin-sdk` to the iOS side of my KMM project but hitting a linking error I can't resolve. Specifically, the tutorial has me add the official `FirebaseFirestore` framework (from `firebase-ios-sdk`) to my iOS project since `firebase-kotlin-sdk` doesn't automatically resolve transitive dependencies for iOS. I added that framework to the iOS project and it built normally. Then I added the following lines to my `shared` library `build.gradle.kts`:
```kotlin { sourceSets { commonMain.dependencies {
            // next line is the problem
            implementation("dev.gitlive:firebase-firestore:1.8.1")
            implementation("dev.gitlive:firebase-common:1.8.1")```
and now iOS builds fail to link:
```ld: warning: ignoring duplicate libraries: '-ldl'
ld: framework 'FirebaseFirestore' not found

> Task :shared:linkDebugFrameworkIosSimulatorArm64 FAILED
error: Compilation finished with errors```
The build log doesn't give any more detail but I've narrowed it down to the `dev.gitlive:firebase-firestore` dependency since commenting out that line un-breaks the build.
Is there any way to get more info on exactly what's failing? As far as I can tell, the iOS project (and the app target, specifically) include `FirebaseFirestore` among the linked frameworks and I don't see any download error. I already have been using `firebase-ios-sdk` and the other products (eg, `FirebaseAuth`) without a problem on iOS.
I'd greatly appreciate any help. *Thanks!*

Did you try to add something like this in the MainViewController file:

```fun initialise() {
    Firebase.initialize()
    Firebase.analytics.setAnalyticsCollectionEnabled(true)
}```
and this call it from iOSApp.swift file:

```@main
struct iOSApp: App {
    @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate

    init() {
        MainViewControllerKt.initialise()
    }
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}```


yeah, I've got that. It looks like this is failing before that would matter (during link). I'm not actually calling any of the API in `firebase-kotlin-sdk` yet

so, just including `firebase-kotlin-sdk` in my `commonMain` dependencies is causing this link error. The build output in Xcode is so massive I'm having trouble even finding the actual `ld` link command

<https://github.com/GitLiveApp/firebase-kotlin-sdk?tab=readme-ov-file>

good idea! It changes the error:
```ld: framework 'FirebaseCore' not found```
which seems like it should just be a matter of adding that product to the framework dependencies but that isn't an option unlike `FirebaseAuth`, `FirebaseFirestore`, etc. Might be internal

I've tried every possible combination and nothing seems to work :confused: I finally see `FirebaseCore` as an option to add as a framework but it's still unavailable at link time

hmm, it seems like this may be a bit of a known problem: <https://github.com/GitLiveApp/firebase-kotlin-sdk/issues/499>