CODEWITHSUNDEEP
ioslinker-errorsduplicate-symbol
Sangu
Sangu

Reputation: 51

112 duplicate symbols for architecture arm64

duplicate symbol _OBJC_METACLASS_$_GTMOAuth2Keychain in:
    /Users/anand/Library/Developer/Xcode/DerivedData/NIDA_Rooms-bawdeawpyzqrkjazbcspzbsqgrht/Build/Products/Release-iphoneos/GTMOAuth2/libGTMOAuth2.a(GTMOAuth2ViewControllerTouch.o)
    /Users/anand/Documents/Anand_ios_Project/ROC&NIDAROOMS/ROCAPP 3/GoogleOpenSource.framework/GoogleOpenSource(GTMOAuth2ViewControllerTouch.o)
ld: 112 duplicate symbols for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Upvotes: 2

Views: 2883

Answers (2)

danielhadar
danielhadar

Reputation: 2161

This might happen when an implementation is defined in the .h file.

Particularly in this case have a look at where does GTMOAuth2Keychain is define, and if it's in GTMOAuth2ViewControllerTouch.h.

Fix it by moving the implementation to the .mm/.m file.

Upvotes: 0

clemens
clemens

Reputation: 17712

You link against GoogleOpenSource.framework and libGTMOAuth2.a. Both contain (define) the symbol _OBJC_METACLASS_$_GTMOAuth2Keychain. You should remove either the framework or the lib from linking.

Upvotes: 1

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