Cannot install via Carthage in Xcode 11

[dandepeched]

error: Value for SWIFT_VERSION cannot be empty. (in target 'OpenSansSwift' from project 'OpenSansSwift')

*** Building scheme "OpenSansSwift" in OpenSansSwift.xcodeproj
Build Failed
Task failed with exit code 65:
/usr/bin/xcrun xcodebuild -project /Users/dan/Documents/Project/Carthage/Checkouts/OpenSansSwift/OpenSansSwift.xcodeproj -scheme OpenSansSwift -configuration Release -derivedDataPath /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/11.4.1_11E503a/OpenSansSwift/4.0.0 -sdk iphoneos ONLY_ACTIVE_ARCH=NO CODE_SIGNING_REQUIRED=NO CODE_SIGN_IDENTITY= CARTHAGE=YES archive -archivePath /var/folders/5h/l496pfts2jx_14gdrkc_gw0r0000gn/T/OpenSansSwift SKIP_INSTALL=YES GCC_INSTRUMENT_PROGRAM_FLOW_ARCS=NO CLANG_ENABLE_CODE_COVERAGE=NO STRIP_INSTALLED_PRODUCT=NO (launched in /Users/dan/Documents/Project/meet-strata-town-ios/Carthage/Checkouts/OpenSansSwift)