Carthage build failure on Xcode 12.0

[danielrbrowne]

The latest release (i.e. v5.0.0) seems to suffer from an issue with an app I'm working with Reachability already integrated via Carthage, and building on the recently released Xcode 12.0. See: Carthage/Carthage#3019.

For clarity, I get the following error in Terminal after running carthage build on my app now that Xcode 12.0 is installed.

Build Failed
	Task failed with exit code 1:
	/usr/bin/xcrun lipo -create /Users/danbrowne/Library/Caches/org.carthage.CarthageKit/DerivedData/12.0_12A7209/Reachability.swift/v5.0.0/Build/Intermediates.noindex/ArchiveIntermediates/Reachability/IntermediateBuildFilesPath/UninstalledProducts/iphoneos/Reachability.framework/Reachability /Users/danbrowne/Library/Caches/org.carthage.CarthageKit/DerivedData/12.0_12A7209/Reachability.swift/v5.0.0/Build/Products/Release-iphonesimulator/Reachability.framework/Reachability -output /Users/danbrowne/Documents/Work/pusher-websocket-swift/Carthage/Build/iOS/Reachability.framework/Reachability

and if I try running that failing xcrun command directly, I get the same root cause errors as shown in the linked issue above.

[EmDee]

This issue is unrelated to this project, but a problem with lipo. Carthage has just released version 0.37.0 that can build XCFrameworks, which gets rid of this failure.