Issue
I’m using Swift Package Manager on an iOS app on Xcode 11 following the instructions from https://developer.apple.com/videos/play/wwdc2019/408/
Everything looks great, except Unit Tests won’t work now.
Solution
After researching a bit, I got this fixed by adding -Xcc -fmodule-map-file=$(PROJECT_TEMP_ROOT)/GeneratedModuleMaps/macosx/<missing module name>.modulemap to OTHER_SWIFT_FLAGS in the test target.
Source:
- https://github.com/apple/swift-nio/issues/1128#issuecomment-527566361
- https://github.com/ReactiveX/RxSwift/issues/2057#issuecomment-538371425
- https://github.com/swift-aws/aws-sdk-swift/issues/167#issuecomment-527650662
PS: Use -Xcc -fmodule-map-file=$(PROJECT_TEMP_ROOT)/GeneratedModuleMaps/iphonesimulator/<module name>.modulemap if your platform is iOS.
UPDATE: Also, it seems that this is fixed on Xcode 11.2 beta2
Answered By – betzerra
Answer Checked By – Clifford M. (BugsFixing Volunteer)