Failed to install via Carthage

[ReDetection]

My Cartfile

github "ReactiveCocoa/ReactiveCocoa" "v3.0-RC.1"

Unfortunately, carthage update gives this output:

$ carthage update
*** Fetching ReactiveCocoa
*** Fetching Result
*** Fetching Box
*** Checking out Result at "0.4.4"
*** Downloading Box at "1.2.2"
*** Downloading ReactiveCocoa at "v3.0 Release Candidate 1"
*** xcodebuild output can be found in /var/folders/jk/0zp2_vl57vz661xk_hm5klxr0000gp/T/carthage-xcodebuild.qWDqGQ.log
Failed to discover shared schemes in project Result.xcodeproj—either the project does not have any shared schemes, or xcodebuild never returned

If you believe this to be a project configuration error, please file an issue with the maintainers at https://github.com/antitypical/Result/issues/new

xcodebuild log is empty.
P.S. It's unclear who is to blame but let's start investigation from here. Can you please help me?

[ikesyo]

I can't reproduce it. Is there any change if you remove the cache from ~/Library/Caches/org.carthage.CarthageKit/dependencies/Result?

[ReDetection]

well, even after rm -rf ~/Library/Caches/org.carthage.CarthageKit/dependencies/ output was similar

$ carthage update
*** Cloning ReactiveCocoa
*** Cloning Result
*** Cloning Box
*** Checking out Result at "0.4.4"
*** Downloading Box at "1.2.2"
*** Downloading ReactiveCocoa at "v3.0 Release Candidate 1"
*** xcodebuild output can be found in /var/folders/jk/0zp2_vl57vz661xk_hm5klxr0000gp/T/carthage-xcodebuild.p5xKlN.log
Failed to discover shared schemes in project Result.xcodeproj—either the project does not have any shared schemes, or xcodebuild never returned

If you believe this to be a project configuration error, please file an issue with the maintainers at https://github.com/antitypical/Result/issues/new

I find it very strange Carthage builds ReactiveCocoa before Result. Well, I'm not sure it succeeds with ReactiveCocoa, but in the build folder there are both Box.framework and ReactiveCocoa.framework, and Result workspace are still in checkout dir. Oh, look, error message complains about xcodeproj while you have a xcworkspace. I know, schemes are in xcodeproj anyway, but maybe it's an issue?

I'm running Yosemite, default Xcode version is 6.4, Carthage version 0.8.
Should I file an issue to the Carthage repo?

[ReDetection]

Removing the binaries folder helped. Thanks @ikesyo.
rm -rf ~/Library/Caches/org.carthage.CarthageKit/binaries/

[robrix]

Thanks @ikesyo! 💛