language: swift
osx_image: xcode9.3
xcode_project: FaceDetection.xcodeproj
xcode_scheme: FaceDetection

language: swift
osx_image: xcode9.3
xcode_project: FaceDetection.xcodeproj
xcode_scheme: FaceDetection
script:
    - xcodebuild clean build -sdk iphonesimulator -project FaceDetection.xcworkspace -scheme FaceDetection CODE_SIGNING_REQUIRED=NO

Use xcodebuild in Travis config
Use xcodebuild in Travis config

xctool fails with error code 4. A potential solution seems to be to circumvent xctool:

https://stackoverflow.com/a/41797558
