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I'm trying add a few social networks skds to my project. I've started from Facebook SDK and all works fine. But when I added a google+ sdk and added -ObjC flag, compile start failing with next error:

/Users/developer/Documents/Projects/iOS/FacebookSDK.framework/FacebookSDK(Facebook.o)
ld: 49 duplicate symbols for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

But when I remove this flag, compile going good. What should I do in this situation?

Vladislav Kovalyov
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  • Take a look [here](http://stackoverflow.com/questions/16427024/duplicate-symbols-for-architecture-armv7) – Lefteris Feb 17 '14 at 14:34

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if some framework or lib required flags (-all_Load or -ObjC) you can load this special libs with Other Linker Flag like this one 

-force_load "$(BUILT_PRODUCTS_DIR)/libRestKit.a"

don't remember exclude this lib from target to avoid symbol duplication

sage444
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