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Editorial Team
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Asked: 2026-05-29T19:51:12+00:00

I’m sorry if this will sound like a dumb question but I just can’t

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I’m sorry if this will sound like a dumb question but I just can’t figure it out by myself. I tried searching the web but it seems that this error can be a result by quite a number of quite a number of causes. Anyway, here it goes:

I don’t understand why I get this error in Xcode when I run my program…

Command /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang failed with exit code 1

It further says:

duplicate symbol _OBJC_IVAR_$_iMonggoFetcherTableViewController._productsArray in /Users/iripple/Library/Developer/Xcode/DerivedData/CoreDataTrial-ecpjzknoorcqzcc‌​khlajnpwveols/Build/Intermediates/CoreDataTrial.build/Debug-iphonesimulator/CoreD‌​ataTrial.build/Objects-normal/i386/iMonggoProductsTableViewController.o and /Users/iripple/Library/Developer/Xcode/DerivedData/CoreDataTrial-ecpjzknoorcqzcc‌​khlajnpwveols/Build/Intermediates/CoreDataTrial.build/Debug-iphonesimulator/CoreD‌​ataTrial.build/Objects-normal/i386/iMonggoFetcherTableViewController.o for architecture i386

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1 Answer

  1. Editorial Team

    There might be many reasons..

    one i experienced recently is i you duplicate constant definitions of variable in different classes.

    Check the line after the crash..it will tell you more about the error.

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