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error: linker command failed - Unity 2017.3.0f3 + Unity Ads 2.2.0

Discussion in 'iOS and tvOS' started by petak_core, Mar 12, 2018.

  1. petak_core

    petak_core

    Joined:
    Nov 19, 2012
    Posts:
    57
    Hi to all,

    I have issue with iOS build + Unity Ads package, when I try to build very simple test application of Unity Ads with Xcode I'm always getting these linker error:

    Code (csharp):
    1.  
    2. duplicate symbol _UnityAdsCopyString in:
    3.  
    4.     /Users/petak/Library/Developer/Xcode/DerivedData/Unity-iPhone-aflmhnsuschfxpenpatmdnypjbax/Build/Intermediates.noindex/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/arm64/UnityAdsUnityWrapper-6D362980BD529555.o
    5.  
    6.     /Users/petak/Library/Developer/Xcode/DerivedData/Unity-iPhone-aflmhnsuschfxpenpatmdnypjbax/Build/Intermediates.noindex/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/arm64/UnityAdsUnityWrapper-5A58B2CEE8B214AA.o
    7.  
    8. duplicate symbol _OBJC_CLASS_$_UnityAdsUnityWrapperDelegate in:
    9.  
    10.     /Users/petak/Library/Developer/Xcode/DerivedData/Unity-iPhone-aflmhnsuschfxpenpatmdnypjbax/Build/Intermediates.noindex/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/arm64/UnityAdsUnityWrapper-6D362980BD529555.o
    11.  
    12.     /Users/petak/Library/Developer/Xcode/DerivedData/Unity-iPhone-aflmhnsuschfxpenpatmdnypjbax/Build/Intermediates.noindex/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/arm64/UnityAdsUnityWrapper-5A58B2CEE8B214AA.o
    13.  
    14. duplicate symbol _OBJC_METACLASS_$_UnityAdsUnityWrapperDelegate in:
    15.  
    16.     /Users/petak/Library/Developer/Xcode/DerivedData/Unity-iPhone-aflmhnsuschfxpenpatmdnypjbax/Build/Intermediates.noindex/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/arm64/UnityAdsUnityWrapper-6D362980BD529555.o
    17.  
    18.     /Users/petak/Library/Developer/Xcode/DerivedData/Unity-iPhone-aflmhnsuschfxpenpatmdnypjbax/Build/Intermediates.noindex/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/arm64/UnityAdsUnityWrapper-5A58B2CEE8B214AA.o
    19.  
    20. ld: 3 duplicate symbols for architecture arm64
    21.  
    I'm using Unity 2017.3.0f3 + Unity Ads 2.2.0 + Xcode 9.2.
    Do you have any ideas how to solved this error ?

    Thank you for any tips or advice.
     
    petak_core, Mar 12, 2018
    #1

  2. kgbv

    kgbv

    Joined:
    Jun 5, 2013
    Posts:
    13
    i facing the same Error in unity 2018.4.21f1 . Any solution ?
     
    kgbv, Apr 29, 2020
    #2

  3. Neonlyte

    Neonlyte

    Joined:
    Oct 17, 2013
    Posts:
    505
    Have you guys tried cleaning the project before building?
     
    Neonlyte, Apr 30, 2020
    #3

  4. kgbv

    kgbv

    Joined:
    Jun 5, 2013
    Posts:
    13
     
    kgbv, Apr 30, 2020
    #4