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

Unity Engine
,
1

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:

duplicate symbol _UnityAdsCopyString in:

    /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

    /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

duplicate symbol _OBJC_CLASS_$_UnityAdsUnityWrapperDelegate in:

    /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

    /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

duplicate symbol _OBJC_METACLASS_$_UnityAdsUnityWrapperDelegate in:

    /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

    /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

ld: 3 duplicate symbols for architecture arm64

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.

2

i facing the same Error in unity 2018.4.21f1 . Any solution ?

3

Have you guys tried cleaning the project before building?

4