[swift-dev] Build failing with error: Swift does not support the SDK 'MacOSX10.12.sdk'

Mishal Shah mishal_shah at apple.com
Fri Jun 16 16:22:34 CDT 2017

Hi Pavol,

Make sure you are running Xcode 9 beta 1 on macOS 10.12.4+, also delete the build directory from previous Xcode before building with new Xcode.

Mishal Shah

> On Jun 16, 2017, at 2:07 PM, Pavol Vaskovic via swift-dev <swift-dev at swift.org> wrote:
> Hello,
> I guess this has something to do with the recent updates to build requirements.
> I have downloaded Xcode 9 beta, and used xcode-select to use that version from command line. What else do I need to do to make Swift build again on Sierra with Xcode 9 beta?
> Best regards
> Pavol Vaskovic 
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> swift-dev mailing list
> swift-dev at swift.org
> https://lists.swift.org/mailman/listinfo/swift-dev

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