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I made a huge mistake by deleting one podFile I had in my Xcode iOS application. I thought that the error was coming from that file when Instead it was another. Long story short, I deleted the LevelDB pod and now the application is giving me this error after trying to launch it: 

duplicate symbol '_pb_field_iter_find' in:
/Users/andreagualandris/Library/Developer/Xcode/DerivedData/InstagramClone-agfsqctheamzqfcdwrbfiaaauqhd/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/nanopb.build/Objects-normal/x86_64/pb_common 2.o
/Users/andreagualandris/Library/Developer/Xcode/DerivedData/InstagramClone-agfsqctheamzqfcdwrbfiaaauqhd/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/nanopb.build/Objects-normal/x86_64/pb_common.o.
ld: 3 duplicate symbols for architecture x86_64

I don't know how to move from here; Do I have to reinstall the podfile? Can I solve this problem by doing something else? thank you to whoever can help me.

2 Answers2

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In the terminal, run pod install in your project directory and it should be OK.

Mac3n
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  • I did and the problem has been solved, but now I see another error coming from a pod file called leveldb. In particular in this line of code **memory_usage_.NoBarrier_Store(** I'm receiving an error that says `No member named 'NoBarrier_Store' in 'std::__1::atomic ` –  Feb 15 '20 at 09:27
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Clear derived data. Try to run pod install then and build the app.

Abhiraj Kumar
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  • I did and the problem has been solved, but now I see another error coming from a pod file called leveldb. In particular in this line of code **memory_usage_.NoBarrier_Store(** I'm receiving an error that says `No member named 'NoBarrier_Store' in 'std::__1::atomic'` –  Feb 15 '20 at 09:27
  • Try clearing pods cache and updating pod. These command might help rm -rf "${HOME}/Library/Caches/CocoaPods" rm -rf "`pwd`/Pods/" pod update – Abhiraj Kumar Feb 16 '20 at 06:02