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Editorial Team
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Asked: 2026-05-31T20:25:47+00:00

I installed xcode 4.3.1 yesterday and everything seemed to work fine. I was able

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I installed xcode 4.3.1 yesterday and everything seemed to work fine. I was able to build, add projects to my device etc.

Then I restarted my machine…

Now whenever I try and build my project I am getting this error

The run destination iPhone 5.1 Simulator is not valid for Running the scheme ‘myproject’ The scheme ‘myproject’ contains no buildables that can be built for the SDKs supported by the run destination iPhone 5.1 Simulator. Make sure your targets all specify SDKs that are supported by this version of Xcode.

So what happened here during my restart of the machine? How can I fix this issue?

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1 Answer

  1. Editorial Team

    Check that the Build SDK in Project settings is set to Latest SDK.

    enter image description here

    Also, do a clean (CMD+K) and run again.

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