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My Swift PM application (single executable with SPM dependencies) works fine in Xcode with "swift package generate-xcodeproj" and offers a single "My Mac" platform option for debugging.

When loading the same application directly into Xcode 11 (beta 5) to avoid the generate-xcodeproj step I get four My Mac options as shown which then leads to
unexpected service error: build aborted due to an internal error: planningFailed("multiple configured targets of XXX are being created for macOS")

Any advice from anyone?

Many thanks,
Mark

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Thanks, we are already tracking both of these issues. Unfortunately, there is no workaround for the multiple configured target issue, so I would recommend that you stick with beta 4 for this project for the time being.

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Thanks for confirming that, @NeoNacho. Is the intent that the specified platforms in your Package manifest will be respected by Xcode 11 as well? If I specify .macOS(.v10_14), I still see all of the iOS simulators and targets present in Xcode's list of targets.

I'm happy to file feedback if this isn't being tracked already - I realise this isn't the appropriate forum for this conversation.

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That is expected, the platforms setting is only for customising the deployment target, but not for restricting supported platforms, see the notes in [Accepted with Modifications] SE-0236: Package Manager Platform Deployment Settings

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TIL - thanks for the information!

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Thanks very much for confirming that these are issues and tracked. I wasn't certain I was doing things right as I didn't try with earlier betas.

BR, Mark