Problems building SwiftyDropbox for MacOS with Carthage

When I follow the directions for installing SwiftyDropbox for MacOS with Charthage on the Github README page, I get errors and a failure to build the SwiftyDropbox framework. The AlamoFire framework builds without any problems. I AM able to build the iOS SwiftyDropbox framework. This has happened on the two Macs I have access to for development. The Terminal output for the entire process follows. Hopefully somebody can help me get this to work.

10:00:01-dennis~/Desktop/CarthageDrop$ carthage update --platform Mac
*** Fetching SwiftyDropbox
*** Fetching Alamofire
*** Checking out Alamofire at "4.0.0"
*** Checking out SwiftyDropbox at "4.0.3"
*** xcodebuild output can be found in /var/folders/h7/c3b7nbhj2yj9plyz82qzz9x40000gn/T/carthage-xcodebuild.1zy95c.log
*** Building scheme "Alamofire OSX" in Alamofire.xcworkspace
2016-09-20 10:00:19.874 xcodebuild[89533:16108184] [MT] DVTPlugInManager: Required plug-in compatibility UUID 8A66E736-A720-4B3C-92F1-33D9962C69DF for KSImageNamed.ideplugin (com.ksuther.KSImageNamed) not present
*** Building scheme "SwiftyDropbox_macOS" in SwiftyDropbox.xcodeproj
2016-09-20 10:00:29.590 xcodebuild[89587:16108530] [MT]

** BUILD FAILED **


The following build commands failed:
    CompileSwift normal x86_64
    CompileSwiftSources normal x86_64 com.apple.xcode.tools.swift.compiler
(2 failures)
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:11:1: error: expressions are not allowed at the top level
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:11:5: error: consecutive statements on a line must be separated by ';'
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:13:5: error: expected declaration
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:13:9: error: consecutive declarations on a line must be separated by ';'
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:15:5: error: expected declaration
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:15:9: error: consecutive declarations on a line must be separated by ';'
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:17:5: error: expected declaration
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:17:9: error: consecutive declarations on a line must be separated by ';'
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:19:5: error: expected declaration
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:19:9: error: consecutive declarations on a line must be separated by ';'
/Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/Source/PlatformNeutral/Base.swift:9:8: error: module compiled with Swift 3.0 cannot be imported in Swift 2.3: /Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/SwiftyDropbox/../../Carthage/Build/Mac/Alamofire.framework/Modules/Alamofire.swiftmodule/x86_64.swiftmodule
A shell task (/usr/bin/xcrun xcodebuild -project /Users/dennis/Desktop/CarthageDrop/Carthage/Checkouts/SwiftyDropbox/Source/SwiftyDropbox/SwiftyDropbox.xcodeproj -scheme SwiftyDropbox_macOS -configuration Release ONLY_ACTIVE_ARCH=NO CODE_SIGNING_REQUIRED=NO CODE_SIGN_IDENTITY= CARTHAGE=YES clean build) failed with exit code 65:
2016-09-20 10:00:29.590 xcodebuild[89587:16108530] [MT] DVTPlugInManager: Required plug-in compatibility UUID 8A66E736-A720-4B3C-92F1-33D9962C69DF for KSImageNamed.ideplugin (com.ksuther.KSImageNamed) not present
** BUILD FAILED **


The following build commands failed:
    CompileSwift normal x86_64
    CompileSwiftSources normal x86_64 com.apple.xcode.tools.swift.compiler
(2 failures)