解决 “building for iOS simulator,

今天升级Google Admob iOS SDK以后，Xcode编译突然报错：

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In /Users/XXX/Documents/libs/GoogleMobileAdsSdkiOS-7.68.0/GoogleAppMeasurement.framework/GoogleAppMeasurement(APMEExperiment_3e0573efa7b433360f767304cef16d18.o), building for iOS Simulator, but linking in object file built for iOS, file '/Users/XXX/Documents/libs/GoogleMobileAdsSdkiOS-7.68.0/GoogleAppMeasurement.framework/GoogleAppMeasurement' for architecture arm64

修改“build settings”后解决，方法是修改VALID_ARCHS，在里面增加x86_64。