Hello guys, I’m trying to develop one library that...

# multiplatform

[Sergio Casero]

Hello guys, I’m trying to develop one library that uses FirebaseAuth, but I have some problems with the iOS part, this is how my cocoapods plugin looks:

cocoapods {
        summary = "Common library for using firebase auth"
        homepage = "TODO"
        isStatic = false

        pod("FirebaseAuth", "6.5.2")
    }

The thing is that the code is well recognized by the IDE and I can develop it without any problems, but when I try to compile the app with xcode, I get:

e: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld invocation reported errors
            The /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld command returned non-zero exit code: 1.
            output:
            Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_FIRAuth", referenced from:
      objc-class-ref in result.o
ld: symbol(s) not found for architecture x86_64

If I change to a real device, I get similar output but with arm values

Any idea?

[kpgalligan]

What’s your cocoapods config in Xcode? You have to wire that up in Xcode as well to link properly.

[Sergio Casero]

My Podfile

[Sergio Casero]

# Uncomment the next line to define a global platform for your project
use_frameworks!
use_modular_headers!

platform :ios, '12.0'

target 'sample_ios' do
  pod 'FirebaseAnalytics'
  pod 'common', :path => '../common/'
end

[Sergio Casero]

And in other linker flags, I have ${inherit} and -ObjC

[kpgalligan]

What does the common.podspec look like?

[Sergio Casero]

https://github.com/sergiocasero/kmp_auth

[Sergio Casero]

The project is open source

[Sergio Casero]

Take a look if you prefer 🙂

[kpgalligan]

Came up 404

[Sergio Casero]

wups sorry, now should be solved

[Sergio Casero]

It was private 😞

[kpgalligan]

I have no idea where the thread is, but I wound up not using cocoapods for the cinterop because there was an issue with Firebase, and I think it was related to subspecs (Firebase/Something), but I never resolved it.

[kpgalligan]

Currently trying to remember what I did here: https://github.com/touchlab/FirestoreKMP

[Sergio Casero]

I'll try to take a look to your repo

[kpgalligan]

Well, anyway. To test it out, I’d comment out the podspec dependency https://github.com/sergiocasero/kmp_auth/blob/master/common/common.podspec#L15

[Sergio Casero]

Thanks ;)

[kpgalligan]

Then add the FirebaseAuth directly in your Podfile. If that works, then it’s something in the way the podspec dependency is added.

[kpgalligan]

Good luck. The interop config is not my favorite thing in KMP.

[Sergio Casero]

Me too hahahaha

[kpgalligan]

I wouldn’t look too hard at my sample. I just pulled the headers directly into the repo for the interop. Sort of a brute force way of doing it, and not very maintainable.

[Sergio Casero]

Yes yes, this was the reason why I discard the cinterop without cocoapods haha