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Editorial Team
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Asked: 2026-06-10T20:41:38+00:00

I am using Resty everywhere in my project, but now since I have to

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I am using Resty everywhere in my project, but now since I have to upload image to server, so I try to add another framework called RestKit to handle file upload. But when I compiled, it got error:

duplicate symbol _NewBase64Decode in:
    /Users/iforests/Library/Developer/Xcode/DerivedData/Owlch-gnysrakcbhsgkubbjjjfbahlocqi/Build/Products/Debug-iphoneos/libRestKit.a(NSData+Base64.o)
    /Users/iforests/Documents/iOSworkspace/Owlch/LRResty.framework/LRResty(NSData+Base64.o)
ld: 2 duplicate symbols for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Is there any way to solve this problem without removing LRResty (since tomorrow is the deadline of this project). Thank you all so much!

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1 Answer

  1. Editorial Team

    Delete these files from the Resty source.

    LRResty/Classes/Categories/NSData+Base64.h
    LRResty/Classes/Categories/NSData+Base64.m

    That will take care of the linking issue.

    If it stops working because of that, rename the files and category for NSData+Base64 in the Resty code and then anywhere the Resty code imports “NSData+Base64.h”, change the import to whatever you rename the category

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