IOS build error duplicate symbols for architecture x86_64

[AlexRAV]

Your Environment

• Plugin version: 0.5.0-alpha.47
• Platform: iOS
• OS version: 12.1
• Device manufacturer and model: iPhone 8
• Running in Simulator: yes
• React Native version: 0.55.4
• Plugin configuration options: default from README.md example
• Link to your project: private project, sorry

Context

I have ejected my expo app from SDK30 and then try to manually install your library as described in readme.
When I trying to build my application for IOS, I am getting the error:

duplicate symbol _OBJC_IVAR_$_DDLogMessage._threadID in:
    /Users/alekseyrebenkov/Library/Developer/Xcode/DerivedData/--------------------bhfjsybpbrvoqjfqvfadebydyiwd/Build/Products/Debug-iphonesimulator/CocoaLumberjack/libCocoaLumberjack.a(DDLog.o)
    /Users/alekseyrebenkov/Library/Developer/Xcode/DerivedData/--------------------bhfjsybpbrvoqjfqvfadebydyiwd/Build/Products/Debug-iphonesimulator/libRCTBackgroundGeolocation.a(CocoaLumberjack.o)
ld: 116 duplicate symbols for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

In fact, I have more longer error log, I can give it to you, if it really need.

Expected Behavior

The application built without errors.

Actual Behavior

I am getting the error.

Possible Fix

I don't know :(

Steps to Reproduce

I don't sure because of my app was developing a long time and I don't know how exactly reproduce my error.

[mauron85]

Can you please list all plugins you're using?

[AlexRAV]

@mauron85 would you like to get my package.json dependency list or my pod packages?

[AlexRAV]

This is my package.json dependencies list

    "autobahn": "^18.3.2",
    "axios": "^0.18.0",
    "babel-plugin-transform-decorators-legacy": "^1.3.5",
    "babel-preset-env": "^1.7.0",
    "expo": "^30.0.0",
    "expokit": "1.7.1",
    "lodash": "^4.17.10",
    "mobx": "^4.3.0",
    "mobx-react": "^5.1.2",
    "moment": "^2.22.1",
    "react": "16.3.1",
    "react-native": "https://github.com/expo/react-native/archive/sdk-30.0.0.tar.gz",
    "react-native-autobahnjs": "^0.1.6",
    "react-native-easy-toast": "^1.1.0",
    "react-native-elements": "1.0.0-beta5",
    "react-native-maps-directions": "^1.6.0",
    "react-native-mauron85-background-geolocation": "^0.5.0-alpha.47",
    "react-native-phone-call": "^1.0.6",
    "react-native-simple-toast": "^0.0.8",
    "react-navigation": "^2.0.4",
    "socket.io-client": "^2.1.1",
    "wamp.js": "^0.2.5",
    "wampy": "^6.2.0",
    "when": "^3.7.8"

[mauron85]

I would say you're using libCocoaLumberjack in your project (or maybe some other library you're using is using it). I can't tell from you package list, which one it might be. But maybe you can check in Xcode.

[mauron85]

I forgot to say, that this plugin is already linking libCocoaLumberjack. So when some other plugin/library is using it, then you have this linking error.

[mauron85]

Also you can remove expo and other expo related libs from your package json as you've already ejected from expo. Delete node_modules and reinstall. The less packages, the better (less possible conflicts).

[mauron85]

One more question. Any chance you've installed https://github.com/transistorsoft/react-native-background-geolocation in the past?

[AlexRAV]

Maybe. But if so, I removed this dependency before eject app and then I removed my node_modules and install again all my dependencies.

[AlexRAV]

I can't remove the whole expo because I am using ExpoKit after eject

[AlexRAV]

I don't know why, but for some reasons, I don't have Libraries folder in my XCode project. I've added your library right in my project. I forgot to say about it.

[mauron85]

Maybe. But if so, I removed this dependency before

that is not enough. You must unlink it with react-native unlink. Even that may not be enough. It depends if that plugin does proper unlink. Try undo all steps mentioned in its install procedure:

https://github.com/transistorsoft/react-native-background-geolocation/blob/master/help/INSTALL-IOS.md

Or you can start new project with freshly installed node_modules and migrate your code base from old project.

The reason, is that this library brought the additional dependency on lumberjack -> the cause of your problem. Since you're not using it anymore (according to package.json), there is no need to have it in your project (even though it's not in node_modules anymore, there are still leftovers somewhere in the project).

[AlexRAV]

Can I have this problem even if I have installed and remove that library before ejected my app? At that moment I didn't have any access to android or ios folders in my project.

[mauron85]

How did you remove? Deleting it from package.json and node_modules is not enough. Not matter if you ejected before or after.

[AlexRAV]

Thanks for your answers. For now, I see that I really have CocoaLumberjack in my pods folders. After I have removed my pods folder and install pods again, CocoaLumberjack appeared in my pods folder again.

Also, I have checked RNBG installation procedure and I didn't find any signs of that library in my project.

When I am trying to find CocoaLumberjack in whole my project, I find this in that file

/myappdir/ios/Pods/Local Podspecs/ExpoKit.podspec.json

"CocoaLumberjack": [
          "~> 3.2.1"
        ],

It seems like ExpoKit has CocoaLumberjack as a dependency.

[mauron85]

Since ExpoKit is using CocoaPods, I'm not sure how to resolve this. I would have to replicate your exact setup.