Καλησπέρα, όταν εκτελώ την εντολή $ sudo apt-get install libbz2-dev libsqlite3-dev libboost-dev zlib1g-dev μου βγαίνει το εξής error:
Err:1 http://ppa.launchpad.net/x2go/stable/ubuntu xenial InRelease Could not resolve 'ppa.launchpad.net' Err:2 http://gr.archive.ubuntu.com/ubuntu xenial InRelease
Could not resolve 'gr.archive.ubuntu.com' Err:3 http://gr.archive.ubuntu.com/ubuntu xenial-updates InRelease
Could not resolve 'gr.archive.ubuntu.com' Err:4 http://gr.archive.ubuntu.com/ubuntu xenial-backports InRelease Could not resolve 'gr.archive.ubuntu.com' Hit:5 http://security.ubuntu.com/ubuntu xenial-security InRelease Reading package lists... Done W: Failed to fetch http://gr.archive.ubuntu.com/ubuntu/dists/xenial/InRelease Could not resolve 'gr.archive.ubuntu.com' W: Failed to fetch http://gr.archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease Could not resolve 'gr.archive.ubuntu.com' W: Failed to fetch http://gr.archive.ubuntu.com/ubuntu/dists/xenial-backports/InRelease Could not resolve 'gr.archive.ubuntu.com' W: Failed to fetch http://ppa.launchpad.net/x2go/stable/ubuntu/dists/xenial/InRelease Could not resolve 'ppa.launchpad.net' W: Some index files failed to download. They have been ignored, or old ones used instead.
σε τι οφείλεται αυτό και πώς μπορώ να το διορθώσω; Ευχαριστώ