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Home/ Questions/Q 7548545
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Editorial Team
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Editorial Team
Asked: May 30, 20262026-05-30T09:43:31+00:00 2026-05-30T09:43:31+00:00

When trying to run my project I get this error and I don´t know

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When trying to run my project I get this error and I don´t know what it means :

_OBJC_CLASS_$_MyWindowController”, referenced from:
objc-class-ref in AppDelegate.
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

What does it mean and how can I get rid of it?

Any ideas?

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  1. Editorial Team
    Editorial Team
    2026-05-30T09:43:33+00:00Added an answer on May 30, 2026 at 9:43 am

    Select the application target, go to the Build Phases tab and make sure MyWindowController.m is in Compile Sources, otherwise add it.

    Also, if you use a xib file associated with it, make sure it is in Copy Bundle Resources.

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