Linker error Unrar4iOS framework

Question

I have added Unrar4iOS framework and getting below linker error. How to fix this?

duplicate symbol __Z12CallbackProcjlll in:
    /Users/dmitryvlasenko/Library/Developer/Xcode/DerivedData/UnrealReader-cpvucqqjfnkeppcasgjdrwasaryu/Build/Intermediates/UnrealReader.build/Debug-iphonesimulator/UnrealReader.build/Objects-normal/i386/Unrar4iOS.o
    /Users/dmitryvlasenko/Desktop/UnrealReader/Unrar4iOS.framework/Unrar4iOS(Unrar4iOS.o)
duplicate symbol _OBJC_IVAR_$_Unrar4iOS.header in:
    /Users/dmitryvlasenko/Desktop/UnrealReader/Unrar4iOS.framework/Unrar4iOS(Unrar4iOS.o)
duplicate symbol _OBJC_IVAR_$_Unrar4iOS._rarFile in:
    /Users/dmitryvlasenko/Library/Developer/Xcode/DerivedData/UnrealReader-cpvucqqjfnkeppcasgjdrwasaryu/Build/Intermediates/UnrealReader.build/Debug-iphonesimulator/UnrealReader.build/Objects-normal/i386/Unrar4iOS.o
    /Users/dmitryvlasenko/Desktop/UnrealReader/Unrar4iOS.framework/Unrar4iOS(Unrar4iOS.o)
duplicate symbol _OBJC_IVAR_$_Unrar4iOS.filename in:
  /Users/dmitryvlasenko/Desktop/UnrealReader/Unrar4iOS.framework/Unrar4iOS(RARExtractException.o)
duplicate symbol _OBJC_EHTYPE_$_RARExtractException in:
    /Users/dmitryvlasenko/Library/Developer/Xcode/DerivedData/UnrealReader-cpvucqqjfnkeppcasgjdrwasaryu/Build/Intermediates/UnrealReader.build/Debug-iphonesimulator/UnrealReader.build/Objects-normal/i386/RARExtractException.o
    /Users/dmitryvlasenko/Desktop/UnrealReader/Unrar4iOS.framework/Unrar4iOS(RARExtractException.o)
ld: 12 duplicate symbols for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

score 0 · Answer 1 · answered Oct 20 '14 at 14:49

0

The error indicates to you that Unrar4iOS is both defined in Unrar4iOS.a and as individual file in your project. So go to:

TargetSettings->Build Phases->Link Binary with Libraries and remove the Unrar4iOS.

answered Oct 20 '14 at 14:49

euthimis87

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score 0 · Answer 2 · answered Oct 20 '14 at 14:57

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Seems you have added the same library twice thats why it says "duplicate symbol __Z12CallbackProcjlll "

answered Oct 20 '14 at 14:57

Pankaj Wadhwa

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score 0 · Answer 3 · answered Nov 19 '14 at 22:01

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The Unrar library is written in C++. If you don't have any .mm files in your project, then Xcode doesn't link against the C++ standard library, and all the references to C++ fail to link.

answered Nov 19 '14 at 22:01

DimonDeveloper

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score 0 · Answer 4 · answered Mar 25 '17 at 07:50

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Here is a compiled test well framework: Unrar4iOS.framework

answered Mar 25 '17 at 07:50

ZYiOS

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Linker error Unrar4iOS framework

4 Answers4