Warning when building with Carthage

[roymckenzie]

Hi @matthewcheok, @Nadohs.

I really love this framework. I have used it on several projects. I have a small issue where when building the project with Carthage xcodebuild will throw some warnings:

carthage update

--- xcodebuild: WARNING: Unable to open project file '/Users/user/Development/Project/Carthage/Checkouts/JSONCodable/JSONCodable.playground' in workspace '/Users/user/Development/Project/Carthage/Checkouts/JSONCodable/JSONCodable.xcworkspace'.
--- xcodebuild: WARNING: Unable to open project file '/Users/user/Development/Project/Carthage/Checkouts/JSONCodable/JSONCodable.playground' in workspace '/Users/user/Development/Project/Carthage/Checkouts/JSONCodable/JSONCodable.xcworkspace'.

Just thought I'd let you know for future releases.

Thanks again!

[Nadohs]

Thanks for reporting this, will look into it.