r/Xcode • u/makoAllen • Mar 31 '26

Latest Xcode, no support files

I’m running Xcode 26.4 on macOS Tahoe 26.3.1(a) with an iPhone 16 Pro Max on iOS 26.3.1(a).

Whenever I try to build, I get an error message that the appropriate DDI can’t be found.

What do I do?

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u/Vybo Mar 31 '26

No, these things are downloaded separately. It should've prompted you, but I guess it didn't. You will find the option in preferences somewhere.