unknown attribute 'retroactive'

inheritance from non-protocol type 'any ExpressibleByIntegerLiteral'

unknown attribute 'retroactive'

inheritance from non-protocol type 'any ExpressibleByFloatLiteral'

unknown attribute 'retroactive'

inheritance from non-protocol type 'any ExpressibleByIntegerLiteral'

unknown attribute 'retroactive'

inheritance from non-protocol type 'any ExpressibleByFloatLiteral'

unknown attribute 'retroactive'

inheritance from non-protocol type 'any ExpressibleByIntegerLiteral'

Run script build phase 'Create Symlinks to Header Folders' will be run during every build because it does not specify any outputs. To address this warning, either add output dependencies to the script phase, or configure it to run in every build by unchecking "Based on dependency analysis" in the script phase. (in target 'Yoga' from project 'Pods')