我正在尝试使用带有 SUP 后端的 Objective c 在 xcode 中开发一个应用程序。当我构建我的项目时，我遇到了一个错误，例如
ld /Users/chairman/Library/Developer/Xcode/DerivedData/New_App-brpimxjxwxsuimcjcfjjrmpnextw/Build/Products/Debug-iphonesimulator/New_App.app/New_App normal i386 cd /Users/chairman/Desktop/New_App/New_App setenv MACOSX_DEPLOYMENT_TARGET 10.6 setenv PATH " /Users/chairman/Desktop/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Users/chairman/Desktop/Xcode.app/Contents/Developer/usr/bin:/usr/bin :/bin:/usr/sbin:/sbin" /Users/chairman/Desktop/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch i386 -isysroot /Users/chairman/Desktop/ Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1。sdk -L/Users/chairman/Library/Developer/Xcode/DerivedData/New_App-brpimxjxwxsuimcjcfjjrmpnextw/Build/Products/Debug-iphonesimulator -L/Users/chairman/Desktop/New_App/New_App/../../MAC_IOS/importing_Libraries/库/Debug-iphoneos -L/Users/chairman/Desktop/New_App/New_App/../../MAC_IOS/importing_Libraries/Libraries/Debug-iphonesimulator -L/Users/chairman/Desktop/New_App/New_App/../。 ./MAC_IOS/importing_Libraries/Libraries/Release-iphoneos -L/Users/chairman/Desktop/New_App/New_App/../../MAC_IOS/importing_Libraries/Libraries/Release-iphonesimulator -L/Users/chairman/Desktop/New_App/ New_App/../../New_App_Data/importing_Libraries/Libraries/Debug-iphonesimulator -F/Users/chairman/Library/Developer/Xcode/DerivedData/New_App-brpimxjxwxsuimcjcfjjrmpnextw/Build/Products/Debug-iphonesimulator -filelist /Users/chairman/Library/Developer/Xcode/DerivedData /New_App-brpimxjxwxsuimcjcfjjrmpnextw/Build/Intermediates/New_App.build/Debug-iphonesimulator/New_App.build/Objects-normal/i386/New_App.LinkFileList -mmacosx-version-min=10.6 -Xlinker -objc_abi_version -Xlinker 2 -Xlinker -no_implicit_dylibs - D__IPHONE_OS_VERSION_MIN_REQUIRED=50100 -lstdc++.6 -lz.1.2.5 -licucore。A -framework Security -framework QuartzCore -framework CoreFoundation -framework AddressBook -framework UIKit -framework Foundation -framework CoreGraphics -o /Users/chairman/Library/Developer/Xcode/DerivedData/New_App-brpimxjxwxsuimcjcfjjrmpnextw/Build/Products/Debug-iphonesimulator/New_App .app/New_App
ld：重复符号 _OBJC_IVAR_$_dev_BhaskarG_com_igate_shipping_v1KeyGenerator._remoteId 在 /Users/chairman/Library/Developer/Xcode/DerivedData/New_App-brpimxjxwxsuimcjcfjjrmpnextw/Build/Intermediates/New_App.build/Debug-iphonesimulator/New_App.build/Objects-1GGenerator/i386/Objects-KeyGenerator/i386/ .o 和 /Users/chairman/Library/Developer/Xcode/DerivedData/New_App-brpimxjxwxsuimcjcfjjrmpnextw/Build/Intermediates/New_App.build/Debug-iphonesimulator/New_App.build/Objects-normal/i386/dev_BhaskarG_com_igate_shipping_v1KeyGenerator copy.o for architecture i386 clang ：错误：链接器命令失败，退出代码为 1（使用 -v 查看调用）
谁能帮我解决这个问题？