Postal
                                
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                        Carthage build error
error: SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0. (in target 'Result-iOS' from project 'Result') error: SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0. (in target 'Result-iOS' from project 'Result')
Please release new version :(
You have to specify like this to take the latest version:
github "snipsco/Postal" "HEAD"