Hello @nartzrls,
Welcome to the forum!
What version of xcode are you currently using?
jobs:
build-and-test:
macos:
xcode: "10.2.0" # What version is listed here?
You can see our latest release announcement (as of now) here: Xcode 10.2.1 image released
Could you try re-running a job that previously passed and let us know if it fails now? On the top right of any job page you will find a dropdown to rebuild the job.