在ionic中构建IOS应用程序时，架构x86_64的重复符号错误

我构建了一个ionic应用程序，并从中构建了IOS应用程序。当我试图构建IOS应用程序时，我在该应用程序中使用了firebase推送通知，但始终出现此错误。我怎样才能消除这里提到的重复文件

重复符号gtmnsdatazlibremainingbytes输入： /用户/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gtmnsdatazliberror输入：

    /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

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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，这意味着此选项会导致函数加载两次：

来自技术问答

此标志使链接器加载库中的每个对象文件 定义Objective-C类或类别的。而这个选项将 通常会导致更大的可执行文件（由于附加的目标代码 加载到应用程序中），它将允许成功创建 包含上的类别的有效Objective-C静态库 现有类

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请按此了解更多详细信息

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添加了两次。因此，我通过从“项目设置”->“构建阶段”->“与库链接二进制文件”中删除重复的框架来修复它，然后检查一些框架是否可能被多次添加，只要找到重复的框架并删除它们，它就可以正常工作了

当多个库（对象文件）共享同一个变量/函数名，生成重复符号时，通常会发生这种情况。编译器会对应该调用哪一个感到困惑

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为了解决这个问题，我们可以使函数内联，或者使用宏代替函数名。我们还可以仅通过使用static

检查是否添加了两次文件或框架，使函数作用域位于库的本地。或者尝试清除派生数据并检查一次。