我刚刚将Xcode升级到版本8.0。我正在使用一个一年的项目（最初用Swift 2.1编写）并使用Carthage。
我想安装依赖项，因此我正在运行carthage update。运行之后，我得到以下输出：
$ carthage update
*** Fetching Nimble
*** Fetching DVR
*** Fetching Quick
*** Fetching ListKit
*** Fetching Result
*** Fetching Argo
*** Checking out Argo at "v3.1.0"
*** Checking out DVR at "56738677fddd560c5ab96a15b172db818e4c22d4"
*** Checking out ListKit at "1.0.0"
*** Checking out Nimble at "v4.1.0"
*** Checking out Quick at "v0.9.3"
*** Downloading Result.framework binary at "3.0.0"
*** xcodebuild output can be found in /var/folders/n0/t0tg9zrd3ms5kd4bzpnz9dww0000gn/T/carthage-xcodebuild.WwnJ6q.log
*** Building scheme "Argo-iOS" in Argo.xcworkspace
--- xcodebuild: WARNING: Unable to open project file '.../TripPlanner/Carthage/Checkouts/Argo/Argo Playground.playground' in workspace '.../TripPlanner/Carthage/Checkouts/Argo/Argo.xcworkspace'.
A shell task (/usr/bin/xcrun xcodebuild -project .../TripPlanner/Carthage/Checkouts/DVR/DVR.xcodeproj -scheme DVR-watchOS -configuration Release CODE_SIGNING_REQUIRED=NO CODE_SIGN_IDENTITY= CARTHAGE=YES clean -showBuildSettings) failed with exit code 66:
xcodebuild: error: Scheme DVR-watchOS is not currently configured for the clean action.
这就是我Cartfile的样子：
github "thoughtbot/Argo"
github "venmo/DVR" "master"
github "antitypical/Result"
github "Ben-G/ListKit"
我有点迷失，并且真的不知道如何进一步调试这个。有没有人暗示我可以做些什么来找到有关这个问题的更多信息？