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while trying to run in Xcode 7.3.1, I am getting the following error :

Ld /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Products/Debug-iphonesimulator/birdybobble\ iOS.app/birdybobble\ iOS normal i386 cd /Volumes/WORK/birdybobble/proj.ios_mac export IPHONEOS_DEPLOYMENT_TARGET=8.0 export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/local/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/iPhoneSimulator9.3.sdk -L/Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Products/Debug-iphonesimulator -Lsdkbox.framework -LPluginChartboost.framework -LChartboost.framework -LPluginAdMob.framework -LGoogleMobileAds.framework -LPluginIAP.framework -F/Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Products/Debug-iphonesimulator -F/Volumes/WORK/birdybobble/proj.ios_mac -filelist /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Intermediates/birdybobble.build/Debug-iphonesimulator/birdybobble\ iOS.build/Objects-normal/i386/birdybobble\ iOS.LinkFileList -mios-simulator-version-min=8.0 -Xlinker -no_deduplicate -Xlinker -objc_abi_version -Xlinker 2 -ObjC -stdlib=libc++ -fobjc-link-runtime -lbz2.1.0 -lz.1 -framework OpenGLES -framework UIKit -framework CoreMotion -framework Security /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Products/Debug-iphonesimulator/libcocos2d\ iOS.a -framework Foundation -framework CoreGraphics -framework QuartzCore -framework OpenAL -framework AVFoundation -framework AudioToolbox -framework sdkbox -framework PluginChartboost -framework Chartboost -framework StoreKit -framework AdSupport -framework SystemConfiguration -framework PluginAdMob -framework GoogleMobileAds -framework CoreMedia -framework CoreTelephony -framework EventKit -framework EventKitUI -framework MessageUI -framework GameController -framework MediaPlayer -framework PluginIAP -Xlinker -dependency_info -Xlinker /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Intermediates/birdybobble.build/Debug-iphonesimulator/birdybobble\ iOS.build/Objects-normal/i386/birdybobble\ iOS_dependency_info.dat -o /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Products/Debug-iphonesimulator/birdybobble\ iOS.app/birdybobble\ iOS

duplicate symbol _strerror$UNIX2003 in: /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Intermediates/birdybobble.build/Debug-iphonesimulator/birdybobble iOS.build/Objects-normal/i386/asd.o /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Products/Debug-iphonesimulator/libcocos2d iOS.a(CCImage.o) duplicate symbol _fopen$UNIX2003 in: /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Intermediates/birdybobble.build/Debug-iphonesimulator/birdybobble iOS.build/Objects-normal/i386/asd.o /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Products/Debug-iphonesimulator/libcocos2d iOS.a(CCImage.o) duplicate symbol _fwrite$UNIX2003 in: /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Intermediates/birdybobble.build/Debug-iphonesimulator/birdybobble iOS.build/Objects-normal/i386/asd.o /Users/ecdev/Library/Developer/Xcode/DerivedData/birdybobble-hfiarbprydmxgtbmjresfgzerqom/Build/Products/Debug-iphonesimulator/libcocos2d iOS.a(CCImage.o) ld: 3 duplicate symbols for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation)

ld: 3 duplicate symbols for architecture i386

clang: error: linker command failed with exit code 1 (use -v to see invocation)

If someone can help, it will be a great help !!!

Thanks in advance.

1 Answers1

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From Xcode 7.3 onwards you can you can's use any custom variable twice. If you want to use then just Go to Build Setting and search for No Common Blocks and set it NO. And build again you will not get this error again.

Kalpesh Panchasara
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