ios - 架构 arm64 的重复符号(Xcode 错误)

Question

我从我的项目中删除了所有对 GoogleMobileAdsSDKiOS-7.1 的引用并添加了 7.4.1。当我在模拟器上运行应用时，一切正常，但在设备上运行时，出现 App Mach-O 链接器错误。

 duplicate symbol l017 in:
/Users/ib/Desktop/Monster  GoogleAds7.4.1/GoogleMobileAdsSdkiOS- 7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADAdNetworkJavaScriptAdViewDelegate.o)
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADRewardBasedVideoAd+Mediation.o)
duplicate symbol l018 in:
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADMRAIDPicture.o)
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADRewardBasedVideoAd+Mediation.o)
duplicate symbol l016 in:
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADBannerAdViewDelegate.o)
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADAdAppViewController.o)
duplicate symbol l021 in:
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADLocation.o)
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADNativeAdAttribution.o)
 duplicate symbol l016 in:
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADBannerAdViewDelegate.o)
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADNativeAdImage.o)
 duplicate symbol l005 in:
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADMWebViewRenderedChecker.o)
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADAdViewRenderedChecker.o)
 duplicate symbol l006 in:
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADMWebViewRenderedChecker.o)
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADAdViewRenderedChecker.o)
 duplicate symbol l012 in:
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADPinger.o)
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADCSIReporter.o)
 duplicate symbol l016 in:
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADBannerAdViewDelegate.o)
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADAdNetworkJavaScriptAdViewDelegate.o)
 duplicate symbol l021 in:
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADLocation.o)
/Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADMRAIDResizeProperties.o)
 ld: 21 duplicate symbols for architecture arm64
 clang: error: linker command failed with exit code 1 (use -v to see invocation)

我知道这个错误意味着我有上面的重复项，但我的问题是在 Xcode 6.1 中我在哪里找到这些重复项以便删除它们？我查看了 info.plist，build设置，找不到任何重复项。 Xcode 6.1 中的重复项位于何处？

Answer 1

尝试从build设置的“其他链接器标志”部分删除“-ObjC”链接器标志。