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Editorial Team
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Editorial Team
Asked: May 31, 20262026-05-31T18:40:09+00:00 2026-05-31T18:40:09+00:00

Why do I get this error message with this code? Use of undeclared identifier

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Why do I get this error message with this code? “Use of undeclared identifier ‘AppDelegate’

int main(int argc, char *argv[])
{
@autoreleasepool {
    return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
}
}

I have imported the Appdelegate file – It’s been there since the beginning since the app sets it there by default.

I am a bit lost and its the only error I got.

Cheers Jeff

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  1. Editorial Team
    Editorial Team
    2026-05-31T18:40:10+00:00Added an answer on May 31, 2026 at 6:40 pm

    Just check the exact Spelling of your AppDelegate file’s name, and make sure you’re calling with a correct spelling in the main file…

    Might be possible that your actual file name is something like : Appdelegate.h

    And you’re calling it as

    [AppDelegate class]
    
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