I get error when i run "sudo apt-get update" and also showing wifi adapter not found

asked 2021-04-21 12:44:35 -0500

hansel gravatar image

rr:1 http://security.ubuntu.com/ubuntu bionic-security InRelease Could not resolve 'security.ubuntu.com' Err:2 http://packages.ros.org/ros/ubuntu bionic InRelease
Could not resolve 'packages.ros.org' Err:3 http://in.archive.ubuntu.com/ubuntu bionic InRelease
Could not resolve 'in.archive.ubuntu.com' Err:4 http://dl.google.com/linux/chrome/deb stable InRelease
Could not resolve 'dl.google.com' Err:5 http://in.archive.ubuntu.com/ubuntu bionic-updates InRelease Could not resolve 'in.archive.ubuntu.com' Err:6 http://in.archive.ubuntu.com/ubuntu bionic-backports InRelease Could not resolve 'in.archive.ubuntu.com' Reading package lists... Done W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/d... Could not resolve 'in.archive.ubuntu.com' W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/d... Could not resolve 'in.archive.ubuntu.com' W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/d... Could not resolve 'in.archive.ubuntu.com' W: Failed to fetch http://security.ubuntu.com/ubuntu/dis... Could not resolve 'security.ubuntu.com' W: Failed to fetch http://dl.google.com/linux/chrome/deb... Could not resolve 'dl.google.com' W: Failed to fetch http://packages.ros.org/ros/ubuntu/di... Could not resolve 'packages.ros.org' W: Some index files failed to download. They have been ignored, or old ones used instead.

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