在 ionic 中构建 IOS 应用程序时出现架构 x86_64 错误的重复符号

Question

我构建了一个 ionic 应用程序并从中构建了 IOS 应用程序。当我尝试构建 IOS 应用程序时，我在此应用程序中使用了 firebase 推送通知，不断收到此错误。我怎样才能摆脱这里提到的重复文件

重复符号 _GTMNSDataZlibRemainingBytesKey 在： /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMNSData+zlib.o) Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMNSData+zlib_b66d12cf522b1bac6527d4b701a2e6f4.o) 重复符号_GTMNSDataZlibErrorKey in：

    /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMNSData+zlib.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMNSData+zlib_b66d12cf522b1bac6527d4b701a2e6f4.o)
    duplicate symbol _GTMNSDataZlibErrorDomain in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMNSData+zlib.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMNSData+zlib_b66d12cf522b1bac6527d4b701a2e6f4.o)
    duplicate symbol _OBJC_CLASS_$_GTMLogStandardFormatter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_METACLASS_$_GTMLogStandardFormatter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_CLASS_$_GTMLogBasicFormatter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_METACLASS_$_GTMLogBasicFormatter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_CLASS_$_GTMLogNoFilter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_METACLASS_$_GTMLogNoFilter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_CLASS_$_GTMLogMininumLevelFilter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_METACLASS_$_GTMLogMininumLevelFilter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_CLASS_$_GTMLogMaximumLevelFilter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_METACLASS_$_GTMLogMaximumLevelFilter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_CLASS_$_GTMLogLevelFilter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_METACLASS_$_GTMLogLevelFilter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_CLASS_$_GTMLogAllowedLevelFilter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_METACLASS_$_GTMLogAllowedLevelFilter in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_CLASS_$_GTMLogger in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_METACLASS_$_GTMLogger in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_IVAR_$_GTMLogLevelFilter.userDefaults_ in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_IVAR_$_GTMLogAllowedLevelFilter.allowedLevels_ in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_IVAR_$_GTMLogger.formatter_ in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_IVAR_$_GTMLogStandardFormatter.dateFormatter_ in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_IVAR_$_GTMLogger.filter_ in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_IVAR_$_GTMLogger.writer_ in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_IVAR_$_GTMLogStandardFormatter.pname_ in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_IVAR_$_GTMLogStandardFormatter.pid_ in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_IVAR_$_GTMLogLevelFilter.verboseLoggingEnabled_ in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/GoogleToolboxForMac/libGoogleToolboxForMac.a(GTMLogger.o)
        Sale Ching/Plugins/cordova-plugin-firebase/GoogleToolboxForMac.framework/GoogleToolboxForMac(GTMLogger_1d87861920ce748f18c427633f13fd22.o)
    duplicate symbol _OBJC_IVAR_$_GPBFloatArray._capacity in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/Protobuf/libProtobuf.a(GPBArray.o)
        Sale Ching/Plugins/cordova-plugin-firebase/Protobuf.framework/Protobuf(GPBArray_9c18dd0099bac64399d692ec28726322.o)
    duplicate symbol _OBJC_IVAR_$_GPBEnumArray._capacity in:
        /Users/uvinduchandrasiri/Library/Developer/Xcode/DerivedData/Sale_Ching-fmystclqwodflqflbkuaoyjyhfbc/Build/Products/Debug-iphonesimulator/Protobuf/libProtobuf.a(GPBArray.o)
duplicate symbols for architecture x86_64

Answer 1

这通常发生在多个库（目标文件）共享相同的变量/函数名称时，会生成重复的符号。编译器对应该调用哪一个感到困惑。

要解决这个问题，我们可以将函数 inline 或使用 ma​​cros 代替函数名。我们也可以只使用 static 将函数范围设为库本地。

Answer 2

我也遇到了同样的问题。不知何故，一些框架在我们的项目中被添加了两次。所以我通过从项目设置中删除重复的框架来修复它 -> 构建阶段 -> 将二进制文件与库链接然后检查可能添加的一些框架多次，只需找到重复的框架并将其删除，然后它应该可以正常工作。

Answer 3

架构 x86_64 的重复符号

这意味着您已经加载了两次相同的函数。由于从其他链接器标志中删除 -ObjC 后问题消失，这意味着此选项导致函数加载两次：

来自技术问答

此标志使链接器加载库中的每个目标文件 定义了一个 Objective-C 类或类别。虽然此选项将 通常会导致更大的可执行文件（由于额外的目标代码 加载到应用程序中），它将允许成功创建 包含类别的有效 Objective-C 静态库 现有的类。

https://developer.apple.com/library/content/qa/qa1490/_index.html

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