CombineExt provides a collection of operators, publishers and utilities for Combine, that are not provided by Apple themselves, but are common in other Reactive Frameworks and standards.
error: Build input file cannot be found: 'Carthage/Checkouts/CombineExt/Sources/Operators/MapTo.swift' (in target 'CombineExt' from project 'CombineExt')
error: Build input file cannot be found: 'Carthage/Checkouts/CombineExt/Sources/Operators/MapTo.swift' (in target 'CombineExt' from project 'CombineExt')