Hit:1 http://security-cdn.debian.org/debian-security stretch/updates InRelease Ign:2 http://cdn-fastly.deb.debian.org/debian stretch InRelease Hit:3 http://cdn-fastly.deb.debian.org/debian stretch-updates InRelease Hit:4 http://cdn-fastly.deb.debian.org/debian stretch Release Reading package lists... E: The method driver /usr/lib/apt/methods/https could not be found. E: Failed to fetch https://apt.repos.intel.com/mkl/dists/all/InRelease E: Some index files failed to download. They have been ignored, or old ones used instead. ERROR: Job failed: exit code 1