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Editorial Team
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Editorial Team
Asked: June 15, 20262026-06-15T13:19:25+00:00 2026-06-15T13:19:25+00:00

In an app, suddenly it’s giving me the error XCode Unknown class ***** in

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In an app, suddenly it’s giving me the error XCode Unknown class ***** in Interface Builder file. I reviewed everything, storyboard, classes, etc.

I try to rename the class but it is the same problem, even I created a new class and copy the code in. I think XCode is taken that from a kind of cache because even properties that I deleted like the icon in the tab bar item are still present in the app when I run it.

What can be the problem?

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  1. Editorial Team
    Editorial Team
    2026-06-15T13:19:26+00:00Added an answer on June 15, 2026 at 1:19 pm

    Sorry, after trying several post I found one solution, delete the folder of the simulator in /…Library/Application\ Support/iPhone\ Simulator/ and removing the class and re-adding it.

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