macos tests fail due to unsupported xcode version. Update circleci configuration to use a supported version (e.g. 10.3.0): https://circleci.com/docs/2.0/testing-ios/
macos tests fail due to unsupported xcode version.
Update circleci configuration to use a supported version (e.g. 10.3.0): https://circleci.com/docs/2.0/testing-ios/