Carthage builds fail at Xcode 12

[miguelangel-dev]

Description

When you try to resolve any SkeletonView version using carthage and Xcode 12 compiler fails with the next error:

*** Fetching SkeletonView
*** Checking out SkeletonView at "ef8e4578d790493ea6931c89d94b6b79cb469671"
*** xcodebuild output can be found in /var/folders/25/znchfspn4239prc8x2mzbd7m0000gp/T/carthage-xcodebuild.KOHbGw.log
*** Building scheme "SkeletonView-iOS" in SkeletonView.xcodeproj
Build Failed
    Task failed with exit code 1:
    /usr/bin/xcrun lipo -create /Users/miguelangel/Library/Caches/org.carthage.CarthageKit/DerivedData/12.2_12B45b/SkeletonView/ef8e4578d790493ea6931c89d94b6b79cb469671/Build/Intermediates.noindex/ArchiveIntermediates/SkeletonView-iOS/IntermediateBuildFilesPath/UninstalledProducts/iphoneos/SkeletonView.framework/SkeletonView /Users/miguelangel/Library/Caches/org.carthage.CarthageKit/DerivedData/12.2_12B45b/SkeletonView/ef8e4578d790493ea6931c89d94b6b79cb469671/Build/Products/Release-iphonesimulator/SkeletonView.framework/SkeletonView -output /Users/miguelangel/Desktop/Skeleton.app/Contents/MacOS/Carthage/Build/iOS/SkeletonView.framework/SkeletonView

This usually indicates that project itself failed to compile. Please check the xcodebuild log for more details: /var/folders/25/znchfspn4239prc8x2mzbd7m0000gp/T/carthage-xcodebuild.KOHbGw.log

What is happening?

Running the lipo command, it alerts the next error:

iphoneos and iphonesimulator in SkeletonView have the same architectures (arm64) and can't be in the same fat output file

A suggested temporal workaround could be to exclude the arm64 architecture for simulators in the project file settings. It seems Carthage is migrating from lipo to XCFrameworks in order to create FAT frameworks (combine several archs. in the same binary)

What type of issue is this? (place an x in one of the [ ])

• [x] compilation error: dependency manager (carthage)
• [x] bug
• [ ] enhancement (feature request)
• [ ] question
• [ ] documentation related
• [ ] discussion

Requirements (place an x in each of the [ ])

• [x] I've read and understood the Contributing guidelines and have done my best effort to follow them.
• [x] I've read and agree to the Code of Conduct.
• [x] I've searched for any related issues and avoided creating a duplicate issue.