Undefined symbol: _OBJC_CLASS_$_GULAppEnvironmentUtil #8137

khoogheem · 2021-05-23T17:09:09Z

[REQUIRED] Step 1: Describe your environment

Xcode version: 12.2
Firebase SDK version: 8.9
Installation method: CocoaPods)
Firebase Component: Crashlytiics

[REQUIRED] Step 2: Describe the problem

Undefined symbol: OBJC_CLASS$_GULAppEnvironmentUtil

Steps to reproduce:

Build using 8.0.0

google-oss-bot · 2021-05-23T17:09:11Z

I found a few problems with this issue:

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.
This issue does not seem to follow the issue template. Make sure you provide all the required information.

rizafran · 2021-05-24T13:12:04Z

Thanks for reporting, @khoogheem. Can you share the detailed steps reproducing the issue? Also, a pod update may be required to ensure all recent dependencies are being pulled in. Thanks.

khoogheem · 2021-05-24T13:13:21Z

Pod updated project all Firebase were set to 8.0.0
Clean project
Build project

morganchen12 · 2021-05-24T17:39:29Z

Can you share your Podfile.lock?

morganchen12 · 2021-05-24T22:49:42Z

Also, are you building with use_frameworks! and not using :linkage => :static?

khoogheem · 2021-05-25T10:44:54Z

Correct Sent from your iPhone

…

On May 24, 2021, at 5:49 PM, Morgan Chen ***@***.***> wrote: Also, are you building with use_frameworks! and not using :linkage => :static? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe.

khoogheem · 2021-05-25T12:03:43Z

this is what we add in:

def firebase
  # Add the pod for Firebase Crashlytics
  pod 'Firebase/Crashlytics'
  # add the Firebase pod for Google Analytics
  pod 'Firebase/Analytics'
  # Firebase Performance
  pod 'Firebase/Performance'
  # add pods for any other desired Firebase products
  # https://firebase.google.com/docs/ios/setup#available-pods
end

morganchen12 · 2021-05-25T15:57:49Z

Can you share the full build log output? It's likely this is occurring in a submodule of your app (i.e. one of your dependencies) and not the app itself.

khoogheem · 2021-05-25T16:41:24Z

Ld /Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/FirebaseCrashlytics/FirebaseCrashlytics.framework/FirebaseCrashlytics normal (in target 'FirebaseCrashlytics' from project 'Pods')
    cd /Users/xxx/Developer/xxx/ios-content-app/Pods
    /Applications/Xcode_12_2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -target x86_64-apple-ios13.0-simulator -dynamiclib -isysroot /Applications/Xcode_12_2.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator14.2.sdk -L/Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/FirebaseCrashlytics -F/Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/FirebaseCrashlytics -F/Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/FirebaseCore -F/Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/FirebaseCoreDiagnostics -F/Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/FirebaseInstallations -F/Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/GoogleDataTransport -F/Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/GoogleUtilities -F/Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/PromisesObjC -F/Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/nanopb -filelist /Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/FirebaseCrashlytics.build/Objects-normal/x86_64/FirebaseCrashlytics.LinkFileList -install_name @rpath/FirebaseCrashlytics.framework/FirebaseCrashlytics -Xlinker -rpath -Xlinker @executable_path/Frameworks -Xlinker -rpath -Xlinker @loader_path/Frameworks -dead_strip -Xlinker -object_path_lto -Xlinker /Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/FirebaseCrashlytics.build/Objects-normal/x86_64/FirebaseCrashlytics_lto.o -Xlinker -export_dynamic -Xlinker -no_deduplicate -Xlinker -objc_abi_version -Xlinker 2 -stdlib\=libc++ -fobjc-arc -fobjc-link-runtime -lc++ -lz -framework Security -framework SystemConfiguration -framework FBLPromises -framework FirebaseCore -framework FirebaseInstallations -framework Foundation -framework GoogleDataTransport -framework nanopb -framework Security -framework SystemConfiguration -compatibility_version 1 -current_version 1 -Xlinker -dependency_info -Xlinker /Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/FirebaseCrashlytics.build/Objects-normal/x86_64/FirebaseCrashlytics_dependency_info.dat -o /Users/xxx/Library/Developer/Xcode/DerivedData/project-esgmvpqlktgtvldltqmcjtupefnh/Build/Products/Debug-iphonesimulator/FirebaseCrashlytics/FirebaseCrashlytics.framework/FirebaseCrashlytics

Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_GULAppEnvironmentUtil", referenced from:
      objc-class-ref in FIRCLSApplication.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

khoogheem · 2021-05-25T16:42:53Z

if you want the lock file send me an email that I can sent it too.. vs posting here

khoogheem · 2021-05-25T18:08:02Z

Ok.. if I use:

   pod 'Firebase'
  pod 'Firebase/Crashlytics'
  # add the Firebase pod for Google Analytics
  pod 'Firebase/Analytics'
  # Firebase Performance
  pod 'Firebase/Performance'

Then it works... which is odd as the only thing I see different between the two locks is core and analytics are swapped
and after I remove it it works as well.. so I am not sure what is going on...

morganchen12 · 2021-05-25T18:20:05Z

You should be able to fix this temporarily by going to your Pods.xcodeproj project and adding the GoogleUtilities framework to the FirebaseCrashlytics target's Link Binary with Libraries build phase.

A more permanent fix may need to come from CocoaPods or Firebase; some further investigation is required.

andreyoshev · 2021-06-01T20:16:29Z

Same

  pod 'Firebase/AnalyticsWithoutAdIdSupport'
  pod 'Firebase/Crashlytics'
  pod 'Firebase/Messaging'

fmalekpour · 2021-06-01T22:15:58Z

Had the same issue, XCode -> Product -> Clean Build Folder fixed it.

paulb777 · 2021-06-01T23:04:22Z

Marking as needs-info for a repro case from a clean build environment

billdevoe · 2021-06-18T23:07:01Z

For a more permanent workaround, you can add the dependency with the missing symbols directly to your target in your Podfile.
pod 'GoogleUtilities'

I added this but still have the crashlytics error (even after a clean and fresh build). If I remove Crashlytics, things compile properly. I did try the temporary fix you mentioned earlier about adding GoogleUtilities to the Link Binary with Libraries, but still saw the same error.

Overall, at this point I'm just excluding it.

morganchen12 · 2021-06-22T22:22:40Z

@paulb777 similar linker error in firebase/FirebaseUI-iOS#969.

paulb777 · 2021-06-22T22:49:01Z

Thanks @morganchen12. I'll take a look in the next day or two

paulb777 · 2021-06-23T20:16:24Z

The FirebaseUI issue turns out to be a test infrastructure issue specific to FirebaseUI. See the firebase/FirebaseUI-iOS#969 for details.

So we're still looking for a reproducible example.

mentalGrowthNick · 2021-06-24T18:58:26Z

Was able to remove the issue by updating my pod file from this:

pod 'Firebase/Core'
pod 'Firebase/Crashlytics'
pod 'Firebase/Analytics'

To this:

pod 'Firebase'
pod 'Firebase/Crashlytics'
pod 'Firebase/Analytics'
pod 'Firebase/Performance'

Firebase/Performance installed GoogleUtilities, which might be the key.

After running pod install, I cleaned my build folder, then deleted derived data for the app.
After waiting for index to finish & then building the project, the issue went away for me.

billdevoe · 2021-06-25T17:46:01Z

Thanks for the note @mentalGrowthNick.

I do have Performance in my Podfile but I still get this issue even after doing all of the steps you mentioned. When I did the pod update I noticed that many of the pods I have updated to 8.2.0, but even with the new changes and everything, this problem persists.

As of today, I'm just not including Crashlytics at all and it's building. I would like to get it added but can't seem to get it working at the moment.

morganchen12 · 2021-06-25T17:59:05Z

@billdevoe can you share your project?

billdevoe · 2021-06-25T18:28:10Z

Hi @morganchen12 - I don't have anything simple that I could share at this point (this is a workspace/project for a published game). I will try to see if I can replicate the issue with a project that I could share.

billdevoe · 2021-06-25T18:38:17Z

So I just created a new project, added the Pods (shown below) and then tried to build the workspace - same error.

This is about as basic as it gets.

Podfile (removed the commented lines as they hork the formatting):

platform :ios, '12.1'

pod 'Firebase'
pod 'Firebase/Crashlytics'
pod 'Firebase/Analytics'
pod 'Firebase/Performance'

pod 'Google-Mobile-Ads-SDK'

target 'Firebase Test App' do
use_frameworks!

end

Podfile.lock:

PODS:

Firebase (8.2.0):

Firebase/Core (= 8.2.0)

Firebase/Analytics (8.2.0):

Firebase/Core

Firebase/Core (8.2.0):

Firebase/CoreOnly

FirebaseAnalytics (~> 8.2.0)

Firebase/CoreOnly (8.2.0):

FirebaseCore (= 8.2.0)

Firebase/Crashlytics (8.2.0):

Firebase/CoreOnly

FirebaseCrashlytics (~> 8.2.0)

Firebase/Performance (8.2.0):

Firebase/CoreOnly

FirebasePerformance (~> 8.2.0)

FirebaseABTesting (8.2.0):

FirebaseCore (~> 8.0)

FirebaseAnalytics (8.2.0):

FirebaseAnalytics/AdIdSupport (= 8.2.0)

FirebaseCore (~> 8.0)

FirebaseInstallations (~> 8.0)

GoogleUtilities/AppDelegateSwizzler (~> 7.4)

GoogleUtilities/MethodSwizzler (~> 7.4)

GoogleUtilities/Network (~> 7.4)

"GoogleUtilities/NSData+zlib (~> 7.4)"

nanopb (~> 2.30908.0)

FirebaseAnalytics/AdIdSupport (8.2.0):

FirebaseCore (~> 8.0)

FirebaseInstallations (~> 8.0)

GoogleAppMeasurement (= 8.2.0)

GoogleUtilities/AppDelegateSwizzler (~> 7.4)

GoogleUtilities/MethodSwizzler (~> 7.4)

GoogleUtilities/Network (~> 7.4)

"GoogleUtilities/NSData+zlib (~> 7.4)"

nanopb (~> 2.30908.0)

FirebaseCore (8.2.0):

FirebaseCoreDiagnostics (~> 8.0)

GoogleUtilities/Environment (~> 7.4)

GoogleUtilities/Logger (~> 7.4)

FirebaseCoreDiagnostics (8.2.0):

GoogleDataTransport (~> 9.0)

GoogleUtilities/Environment (~> 7.4)

GoogleUtilities/Logger (~> 7.4)

nanopb (~> 2.30908.0)

FirebaseCrashlytics (8.2.0):

FirebaseCore (~> 8.0)

FirebaseInstallations (~> 8.0)

GoogleDataTransport (~> 9.0)

nanopb (~> 2.30908.0)

PromisesObjC (~> 1.2)

FirebaseInstallations (8.2.0):

FirebaseCore (~> 8.0)

GoogleUtilities/Environment (~> 7.4)

GoogleUtilities/UserDefaults (~> 7.4)

PromisesObjC (~> 1.2)

FirebasePerformance (8.2.0):

FirebaseCore (~> 8.0)

FirebaseInstallations (~> 8.0)

FirebaseRemoteConfig (~> 8.0)

GoogleDataTransport (~> 9.0)

GoogleUtilities/Environment (~> 7.4)

GoogleUtilities/ISASwizzler (~> 7.4)

GoogleUtilities/MethodSwizzler (~> 7.4)

Protobuf (~> 3.15)

FirebaseRemoteConfig (8.2.0):

FirebaseABTesting (~> 8.0)

FirebaseCore (~> 8.0)

FirebaseInstallations (~> 8.0)

GoogleUtilities/Environment (~> 7.4)

"GoogleUtilities/NSData+zlib (~> 7.4)"

Google-Mobile-Ads-SDK (8.7.0):

GoogleAppMeasurement (< 9.0, >= 7.0)

GoogleUserMessagingPlatform (>= 1.1)

GoogleAppMeasurement (8.2.0):

GoogleAppMeasurement/AdIdSupport (= 8.2.0)

GoogleUtilities/AppDelegateSwizzler (~> 7.4)

GoogleUtilities/MethodSwizzler (~> 7.4)

GoogleUtilities/Network (~> 7.4)

"GoogleUtilities/NSData+zlib (~> 7.4)"

nanopb (~> 2.30908.0)

GoogleAppMeasurement/AdIdSupport (8.2.0):

GoogleUtilities/AppDelegateSwizzler (~> 7.4)

GoogleUtilities/MethodSwizzler (~> 7.4)

GoogleUtilities/Network (~> 7.4)

"GoogleUtilities/NSData+zlib (~> 7.4)"

nanopb (~> 2.30908.0)

GoogleDataTransport (9.0.1):

GoogleUtilities/Environment (~> 7.2)

nanopb (~> 2.30908.0)

PromisesObjC (~> 1.2)

GoogleUserMessagingPlatform (2.0.0)

GoogleUtilities/AppDelegateSwizzler (7.4.3):

GoogleUtilities/Environment

GoogleUtilities/Logger

GoogleUtilities/Network

GoogleUtilities/Environment (7.4.3):

PromisesObjC (~> 1.2)

GoogleUtilities/ISASwizzler (7.4.3)

GoogleUtilities/Logger (7.4.3):

GoogleUtilities/Environment

GoogleUtilities/MethodSwizzler (7.4.3):

GoogleUtilities/Logger

GoogleUtilities/Network (7.4.3):

GoogleUtilities/Logger

"GoogleUtilities/NSData+zlib"

GoogleUtilities/Reachability

"GoogleUtilities/NSData+zlib (7.4.3)"

GoogleUtilities/Reachability (7.4.3):

GoogleUtilities/Logger

GoogleUtilities/UserDefaults (7.4.3):

GoogleUtilities/Logger

nanopb (2.30908.0):

nanopb/decode (= 2.30908.0)

nanopb/encode (= 2.30908.0)

nanopb/decode (2.30908.0)

nanopb/encode (2.30908.0)

PromisesObjC (1.2.12)

Protobuf (3.17.0)

DEPENDENCIES:

Firebase

Firebase/Analytics

Firebase/Crashlytics

Firebase/Performance

Google-Mobile-Ads-SDK

SPEC REPOS:
trunk:
- Firebase
- FirebaseABTesting
- FirebaseAnalytics
- FirebaseCore
- FirebaseCoreDiagnostics
- FirebaseCrashlytics
- FirebaseInstallations
- FirebasePerformance
- FirebaseRemoteConfig
- Google-Mobile-Ads-SDK
- GoogleAppMeasurement
- GoogleDataTransport
- GoogleUserMessagingPlatform
- GoogleUtilities
- nanopb
- PromisesObjC
- Protobuf

SPEC CHECKSUMS:
Firebase: 12c568897b807321964e89d2b263ef4c6cff3db6
FirebaseABTesting: 5f37131c5eceea579c471c915f7a0f8cad484d1f
FirebaseAnalytics: 7a744b1e7dc50125cb37714c6bdaea167e412082
FirebaseCore: 3a83f24c3de69ec9f9a426e2598125ea51f3a2ce
FirebaseCoreDiagnostics: 61384f54989065b15c36b5922b65112e86811d3c
FirebaseCrashlytics: 935dbdb043a286ca92a22d15e5780802403ea0ea
FirebaseInstallations: 9394ea09e242bf0816e95ac30e56a9214cc86ced
FirebasePerformance: fe501d202ae945c4a457fc49e9ad9785b51ba6f8
FirebaseRemoteConfig: 6695557b3dac704527c952502e799586941d399e
Google-Mobile-Ads-SDK: e242f463fdb8564ac3f11847a30215a0e042c934
GoogleAppMeasurement: b52eafc9dff542d580700e708216568bd2fbf168
GoogleDataTransport: 04c3e9a480bbcaa2ec3f5d27f1cdeb6a92f20c8d
GoogleUserMessagingPlatform: ab890ce5f6620f293a21b6bdd82e416a2c73aeca
GoogleUtilities: 45dbb24a7f351d69d0a601482b39ad6c32e30dab
nanopb: a0ba3315591a9ae0a16a309ee504766e90db0c96
PromisesObjC: 3113f7f76903778cf4a0586bd1ab89329a0b7b97
Protobuf: 7327d4444215b5f18e560a97f879ff5503c4581c

PODFILE CHECKSUM: dd633a8ad26610feb18e1908fb3d320393a2fdb3

COCOAPODS: 1.10.1

I'm wondering at this point if it's something about Objective-C or the target (iOS 12.1) or something else. I did have to do a LOT of updates to get gems working properly, but if I put the Crashlytics pod into the Podfile, I get the error.

morganchen12 · 2021-06-25T20:06:05Z

@billdevoe I tried reproducing this build failure with a very similar Podfile but was unable to do so (see the attached sample project). I'm using Xcode 12.3, though that shouldn't be a factor in this issue.

ReproExample.zip

billdevoe · 2021-06-25T23:19:54Z

Hi @morganchen12 - I built the example project you posted and it works (when I correctly remember to change the build target to the iOS version). So it's not completely FUBAR on my machine, just with most of the basic things I'm doing. I'll keep poking around to see what differences exist between the two things.

This is the project I made that doesn't build properly for me.

Firebase Test App.zip

paulb777 · 2021-06-26T14:17:53Z

Thanks for providing the example. The issue is clear now and fixed in #8308. The Crashlytics podspec was not defining one of its dependencies.

We do not typically see this issue because it is only exposed by an unusual Podfile. Putting use_frameworks! inside a target causes CocoaPods to generate both frameworks and library build targets and that exposes the build issue. There generally is not a reason to want to build all dependencies twice, so typically use_frameworks! is placed at the top of the Podfile.

billdevoe · 2021-06-27T19:56:03Z

Thanks @paulb777 - I used someone's example of a Podfile to create mine. I guess I didn't realize it was in the target. BUT - moving it out of the target section of the Podfile DOES fix the issue.

Happy I was able to help you identify a bug and fix it. :D

Thanks for all the help, everyone. Very happy that things are working now. Much appreciated.

abhideep · 2021-07-14T12:55:30Z

So is the solution to move

use_frameworks!

out of the loop?

target 'Runner' do

kumabook · 2021-07-19T14:45:10Z

GoogleUtilities/Environment dependency doesn't exist in podspec of cocoapods repo.

https://github.com/CocoaPods/Specs/blob/master/Specs/e/7/d/FirebaseCrashlytics/8.3.0/FirebaseCrashlytics.podspec.json#L42

Is this as intended?
I think build errors still occurs.

paulb777 · 2021-07-19T15:08:16Z

Hmm, it looks like the fix missed 8.3.0. Sorry about that.

It is staged for 8.4.0 - https://github.com/firebase/SpecsStaging/blob/master/FirebaseCrashlytics/8.4.0/FirebaseCrashlytics.podspec.json

bzdybowicz · 2021-07-20T09:43:10Z

When will it be deployed to public specs ?

paulb777 · 2021-07-20T23:12:26Z

The 8.4.0 CocoaPods versions published today.

paulb777 · 2022-08-26T21:50:15Z

I just noticed this issue is still in our top ten search traffic.

If you're still seeing this with releases after 8.4.0, please open another issue.

google-oss-bot added the needs-triage label May 23, 2021

rizafran added GoogleUtilities and removed needs-triage labels May 24, 2021

rizafran added the needs-info label May 24, 2021

google-oss-bot added needs-attention and removed needs-info labels May 24, 2021

morganchen12 added needs-info and removed needs-attention labels May 24, 2021

google-oss-bot added needs-attention and removed needs-info labels May 25, 2021

morganchen12 added needs-info and removed needs-attention labels May 25, 2021

google-oss-bot added needs-attention and removed needs-info labels May 25, 2021

morganchen12 self-assigned this May 25, 2021

morganchen12 mentioned this issue Jun 22, 2021

Fix test Podfile and eliminate unnecessary podspec dependencies firebase/FirebaseUI-iOS#969

Merged

paulb777 self-assigned this Jun 22, 2021

paulb777 added the needs-info label Jun 23, 2021

paulb777 mentioned this issue Jun 26, 2021

Add missing Crashlytics dependency #8308

Merged

paulb777 added api: crashlytics and removed needs-info labels Jun 26, 2021

paulb777 added this to the 8.3.0 - M99 milestone Jun 26, 2021

paulb777 closed this as completed in #8308 Jun 28, 2021

morganchen12 modified the milestones: 8.3.0 - M99, 8.4.0 - M100 Jul 19, 2021

firebase locked and limited conversation to collaborators Jul 29, 2021

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Undefined symbol: _OBJC_CLASS_$_GULAppEnvironmentUtil #8137

Undefined symbol: _OBJC_CLASS_$_GULAppEnvironmentUtil #8137

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Undefined symbol: _OBJC_CLASS_$_GULAppEnvironmentUtil #8137

Undefined symbol: _OBJC_CLASS_$_GULAppEnvironmentUtil #8137

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khoogheem commented May 23, 2021

[REQUIRED] Step 1: Describe your environment

[REQUIRED] Step 2: Describe the problem

Steps to reproduce:

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