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Editorial Team
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Asked: 2026-05-20T11:50:06+00:00

I really don’t understand this. I downloaded the recent version of xCode 3.2.5 and

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I really don’t understand this. I downloaded the recent version of xCode 3.2.5 and Interface Builder 3.2.5. I follow these steps:

Create: Window Based Application (iPhone)
Double Click: MainWindow.xib
— Launches Interface Builder —
selects -> File -> Build and Go in XCode

I get the following error in Interface Builder:

“Interface Builder could not build and go in Xcode.
Build failed (1 error)”

But there are no build errors in Xcode. I don’t quite understand what is happening since I am new to this platform. Can anyone assist?

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1 Answer

  1. Editorial Team

    It’s generally not a good idea to Build and Run from Interface Builder. Just switch back (cmd-tab) to XCode and hit cmd-R to Build and Run from there.

    Interface Builder is trying to run the xib itself instead of running your Application.

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