将cordova文件插件添加到现有ios项目时，重复符号kCDVFilesystemURLPrefix

我有一个现有的ios项目，我想使用cordova web视图（带有插件）。我遵循了phonegap文档中的说明，我的项目成功编译

但是，当我想将文件插件添加到我的项目中时，出现以下错误：

Ld /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Products/Debug-iphonesimulator/appworks-ios.app/appworks-ios normal i386
cd /Users/jibrahim/workspace/appworks-ios
export IPHONEOS_DEPLOYMENT_TARGET=8.3
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator8.3.sdk -L/Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Products/Debug-iphonesimulator -L/Users/jibrahim/workspace/appworks-ios/Pods/GGLInstanceID/Libraries -L/Users/jibrahim/workspace/appworks-ios/Pods/Google/Libraries -L/Users/jibrahim/workspace/appworks-ios/Pods/GoogleCloudMessaging/Libraries -L/Users/jibrahim/workspace/appworks-ios/Pods/GoogleInterchangeUtilities/Libraries -L/Users/jibrahim/workspace/appworks-ios/Pods/GoogleNetworkingUtilities/Libraries -L/Users/jibrahim/workspace/appworks-ios/Pods/GoogleSymbolUtilities/Libraries -L/Users/jibrahim/workspace/appworks-ios/Pods/GoogleUtilities/Libraries -L/Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Products/Debug-iphoneos -F/Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Products/Debug-iphonesimulator -F/Applications/Xcode.app/Contents/Developer/Library/Frameworks -filelist /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Intermediates/appworks-ios.build/Debug-iphonesimulator/appworks-ios.build/Objects-normal/i386/appworks-ios.LinkFileList -Xlinker -rpath -Xlinker @executable_path/Frameworks -Xlinker -objc_abi_version -Xlinker 2 -ObjC -lGGLCloudMessaging -lGGLCore -lGGLInstanceIDLib -lGSDK_Overload -lGTMSessionFetcher_core -lGTMSessionFetcher_full -lGTMStackTrace -lGTM_AddressBook -lGTM_DebugUtils -lGTM_GTMURLBuilder -lGTM_KVO -lGTM_NSDictionary+URLArguments -lGTM_NSScannerJSON -lGTM_NSStringHTML -lGTM_NSStringXML -lGTM_Regex -lGTM_RoundedRectPath -lGTM_StringEncoding -lGTM_SystemVersion -lGTM_UIFont+LineHeight -lGTM_core -lGTM_iPhone -lGcmLib -lPods-AFNetworking -lPods-CocoaLumberjack -lPods-ZipArchive -lProtocolBuffers -lsqlite3 -lz -framework AddressBook -framework CoreGraphics -framework MobileCoreServices -framework Security -framework SystemConfiguration -ObjC -lGGLCloudMessaging -lGGLCore -lGGLInstanceIDLib -lGSDK_Overload -lGTMSessionFetcher_core -lGTMSessionFetcher_full -lGTMStackTrace -lGTM_AddressBook -lGTM_DebugUtils -lGTM_GTMURLBuilder -lGTM_KVO -lGTM_NSDictionary+URLArguments -lGTM_NSScannerJSON -lGTM_NSStringHTML -lGTM_NSStringXML -lGTM_Regex -lGTM_RoundedRectPath -lGTM_StringEncoding -lGTM_SystemVersion -lGTM_UIFont+LineHeight -lGTM_core -lGTM_iPhone -lGcmLib -lPods-AFNetworking -lPods-CocoaLumberjack -lPods-ZipArchive -lProtocolBuffers -lsqlite3 -lz -framework AddressBook -framework CoreGraphics -framework MobileCoreServices -framework Security -framework SystemConfiguration -fobjc-arc -fobjc-link-runtime -Xlinker -no_implicit_dylibs -mios-simulator-version-min=8.3 /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Products/Debug-iphonesimulator/libCordova.a -framework AddressBook -framework AddressBookUI -framework AudioToolbox -framework AVFoundation -framework CoreLocation -framework CoreMedia -framework MediaPlayer -framework MobileCoreServices -framework QuartzCore -framework SystemConfiguration -framework CoreGraphics -lPods -framework AssetsLibrary -Xlinker -dependency_info -Xlinker /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Intermediates/appworks-ios.build/Debug-iphonesimulator/appworks-ios.build/Objects-normal/i386/appworks-ios_dependency_info.dat -o /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Products/Debug-iphonesimulator/appworks-ios.app/appworks-ios

ld: warning: directory not found for option '-L/Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Products/Debug-iphoneos'
duplicate symbol _kCDVFilesystemURLPrefix in:
    /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Intermediates/appworks-ios.build/Debug-iphonesimulator/appworks-ios.build/Objects-normal/i386/CDVAssetLibraryFilesystem.o
    /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Intermediates/appworks-ios.build/Debug-iphonesimulator/appworks-ios.build/Objects-normal/i386/CDVFile.o
duplicate symbol _kCDVAssetsLibraryPrefix in:
    /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Intermediates/appworks-ios.build/Debug-iphonesimulator/appworks-ios.build/Objects-normal/i386/CDVAssetLibraryFilesystem.o
    /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Intermediates/appworks-ios.build/Debug-iphonesimulator/appworks-ios.build/Objects-normal/i386/CDVFile.o
duplicate symbol _kCDVFilesystemURLPrefix in:
    /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Intermediates/appworks-ios.build/Debug-iphonesimulator/appworks-ios.build/Objects-normal/i386/CDVAssetLibraryFilesystem.o
    /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Intermediates/appworks-ios.build/Debug-iphonesimulator/appworks-ios.build/Objects-normal/i386/CDVLocalFilesystem.o
duplicate symbol _kCDVAssetsLibraryPrefix in:
    /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Intermediates/appworks-ios.build/Debug-iphonesimulator/appworks-ios.build/Objects-normal/i386/CDVAssetLibraryFilesystem.o
    /Users/jibrahim/Library/Developer/Xcode/DerivedData/appworks-ios-bvhgmyzzslupqsbrfkdduticdqik/Build/Intermediates/appworks-ios.build/Debug-iphonesimulator/appworks-ios.build/Objects-normal/i386/CDVLocalFilesystem.o
ld: 4 duplicate symbols for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

但奇怪的是，我添加的所有其他插件都能成功编译（例如CDVSplashScreen）。只有在将CDVFile.m、CDVLocalFilesystem.m和CDVAssetLibraryFilesystem.m添加到项目中时，才会出现此问题

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任何帮助都将不胜感激。

我不知道您是如何或是否解决了它，但我遇到了同样的问题，只需用@“cdvfile”替换所有出现的问题即可解决

从XCode单击项目导航器

从中单击BuildSettings

在其中查找无公共块，并将其设置为否

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这对我来说很有效。

最近也出现了同样的问题，即使是使用Cocoapod

在CDVFile.h中由解决

改变

NSString* const kCDVFilesystemURLPrefix;

到

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修复了我使用XCode 8时遇到的同样问题，Cordova由Ionic Framework管理（cli 2，项目在Ionic 1上）。也为我工作-XCode 12。iOS 14。

extern NSString* const kCDVFilesystemURLPrefix;