Firebase-ios-sdk: _OBJC_CLASS_$_GULAppEnvironmentUtil

[marinofaggiana]

Undefined symbols for architecture arm64: "_OBJC_CLASS_$_GULAppEnvironmentUtil", referenced from: objc-class-ref in FirebaseCoreDiagnostics(FIRDiagnostics_afb9975b7573ce8caa0e4380e6bfbe31.o) "_OBJC_CLASS_$_GULNetwork", referenced from: objc-class-ref in FirebaseCoreDiagnostics(FIRClearcutLogger_45763904baa6658ff86b47cac2ab23e7.o) ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

I use Firebase without CocoaPods Xcode 9.4.1 with Other Linker Flags -Objc as this guide : https://firebase.google.com/docs/ios/setup#frameworks

Where is the issue ?

Thanks a lot

[morganchen12]

Your app is missing the GoogleUtilities framework. @paulb777, have we updated the installation READMEs after adding GoogleUtilities?

[paulb777]

@marinofaggiana Are you integrating from the zipfile? There might have been a packaging failure in creating the 5.4.1 zipfile.

If so, a workaround could be removing FirebaseCoreDiagnostics from the set of libraries added to the project.

@morganchen12 Firebase usage of the GoogleUtilities framework has not released yet.

[marinofaggiana]

thanks @paulb777 I have remove FirebaseCoreDiagnostics and the issue is closed, but without FirebaseCoreDiagnostics exists a few future problem ? We use Firebase only for push notification (Analytics and messaging).

[paulb777]

@marinofaggiana There should not be problems for you.

I'll work on publishing a corrected zip in the next day or two so others do not run into the problem and will keep this issue open until then.

[marinofaggiana]

Thanks a lot @paulb777 for your job.

[paulb777]

Firebase-5.4.1.zip has now been updated. The correct version has an ls -l size of 455024108.

[otondin]

I was in pain for a week with this issue! Thanks a lot for the fix @paulb777! I owe you a cup of coffee! 😄 ☕️

[denis-shienkov]

Hi guys,

I'm too faced with this issue then I have upgraded OSX to Sierra 10.13.6 and XCode to 9.4.1 (with previous Sierra 10.12.6 && XCode 9.2 were all fine).

PS: I use Firebase-5.5.0..

From where I need to remove the 'FirebaseCoreDiagnostics'? I use only following firebase libraries:

# Linking for required firebase POD's frameworks.
FCM_PODS_PATH = $$(GOOGLE_FIREBASE_PODS)
message("FCM_PODS_PATH = $$FCM_PODS_PATH")

LIBS += \
    -F$$FCM_PODS_PATH/Messaging \
    -F$$FCM_PODS_PATH/Analytics \
    -framework FirebaseCore \
    -framework FirebaseInstanceID \
    -framework FirebaseMessaging \
    -framework Protobuf

# Linking for required firebase C++ SDK libraries.
FCM_SDK_LIBS_PATH = $$(GOOGLE_FIREBASE_SDK)/libs/ios/universal
message("FCM_SDK_LIBS_PATH = $$FCM_SDK_LIBS_PATH")

LIBS += \
    -L$$FCM_SDK_LIBS_PATH \
    -lfirebase_app \
    -lfirebase_messaging

so, I don't use the 'FirebaseCoreDiagnostics' at all...

How to fix this issue?

[denis-shienkov]

UPD: Seems I need to add and:

-framework GoogleUtilities

from the Analytics directory... O_o