LinkedIn SDK duplicate symbol

Question

I downloaded latest LinkedIn SDK and added to my project but building failed

duplicate symbol _OBJC_METACLASS_$_PodsDummy_Pods in: /linkedin-sdk.framework/linkedin-sdk(Pods-dummy.o) /Build/Products/Debug-iphonesimulator/libPods.a(Pods-dummy.o) duplicate symbol _OBJC_CLASS_$_PodsDummy_Pods in: /linkedin-sdk.framework/linkedin-sdk(Pods-dummy.o) /Build/Products/Debug-iphonesimulator/libPods.a(Pods-dummy.o) ld: 2 duplicate symbols for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

Does anyone know how to fix it?

Nebiim

possible duplicate of Prevent duplicate symbols when building static library with Cocoapods – Discommode

Also here is discussion of this issue: github.com/CocoaPods/CocoaPods/issues/1767 – Discommode

This solution solved the same problem for me: https://mcmap.net/q/576804/-prevent-duplicate-symbols-when-building-static-library-with-cocoapods – Hochman

@Hochman do you mean that I should rename all symbols of pod libraries to solve problem. I guess LinkedIn developers should fix it – Nebiim

yeah +1 for @Nebiim comment. Why should I change all of my other pods. Such a bad bug for a very late coming library. Haven't they test this case? – Sining

@keremkeskin do you know how to report bug to LinkedIn developers? I couldn't find – Nebiim

Answer 1

I had the same issue, and found a workaround until the LinkedIn SDK is 'fixed'.

Simply update the Pods-dummy.m file in the Pods Xcode project from:

#import <Foundation/Foundation.h>
@interface PodsDummy_Pods : NSObject
@end
@implementation PodsDummy_Pods
@end

to

#import <Foundation/Foundation.h>
@interface PodsDummy_Podsxx : NSObject
@end
@implementation PodsDummy_Podsxx
@end

and it will then link.

Note: you will need to patch this each time you update your Pods via the command line, e.g. "pod install" or update etc.

Ern

This is awesome.. simple fix and it worked like a charm...Thanks dude..!! – Sphagnum

@Peter Li, Amazing hack dude! :) – Multipurpose

Answer 2

I can't comment so I will leave this as a reply to @rinat , I didn't need to change the other pods name, just add:

post_install do |installer_representation|
    installer_representation.project.targets.each do |target|
        target.build_configurations.each do |config|
            config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] =     '$(inherited), PodsDummy_Pods=SomeOtherNamePodsDummy_Pods'
        end
    end
end

to the pod file. Anyways the SDK linkedIn didn't work at all for me. I haven't been able to make it work, it simply doesn't work when authenticating with the app ready. No logs, nothing... I ended implementing a normal OAuth2 web login.

Hochman

Answer 3

Hey no need to change PodsDummy_Pods name to PodsDummy_Podsxx each time you update your Pods via the command line, e.g. "pod install" or update etc.

Paste below code in Podfile. linkedIn SDK working cool......

post_install do |installer_representation|
    installer_representation.pods_project.targets.each do |target|
        target.build_configurations.each do |config|
            config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] = '$(inherited), PodsDummy_Pods=SomeOtherNamePodsDummy_Pods'
        end
    end
end

Inquisitor