i have tried this Unable to Fetch archives but the issue is still there in my case, its always saying Unable to fetch some archives, maybe run apt-get update or try with --fix-missing? how can I fix that, I am using ubuntu 18.04lts also I have checked the sources list to update as well here is the list :
# deb cdrom:[Ubuntu 18.04.5 LTS _Bionic Beaver_ - Release amd64 (20200806.1)]/ bionic main restricted# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to# newer versions of the distribution.deb http://in.archive.ubuntu.com/ubuntu/ bionic main restricted## Major bug fix updates produced after the final release of the## distribution.deb http://in.archive.ubuntu.com/ubuntu/ bionic-updates main restricted## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu## team. Also, please note that software in universe WILL NOT receive any## review or updates from the Ubuntu security team.deb http://in.archive.ubuntu.com/ubuntu/ bionic universe# deb-src http://in.archive.ubuntu.com/ubuntu/ bionic universedeb http://in.archive.ubuntu.com/ubuntu/ bionic-updates universe# deb-src http://in.archive.ubuntu.com/ubuntu/ bionic-updates universe## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu## security team.deb http://in.archive.ubuntu.com/ubuntu/ bionic multiverse# deb-src http://in.archive.ubuntu.com/ubuntu/ bionic multiversedeb http://in.archive.ubuntu.com/ubuntu/ bionic-updates multiverse# deb-src http://in.archive.ubuntu.com/ubuntu/ bionic-updates multiverse## N.B. software from this repository may not have been tested as## extensively as that contained in the main release, although it includes## newer versions of some applications which may provide useful features.## Also, please note that software in backports WILL NOT receive any review## or updates from the Ubuntu security team.deb http://in.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse## Uncomment the following two lines to add software from Canonical's## 'partner' repository.## This software is not part of Ubuntu, but is offered by Canonical and the## respective vendors as a service to Ubuntu users.# deb http://archive.canonical.com/ubuntu bionic partner# deb-src http://archive.canonical.com/ubuntu bionic partnerdeb http://in.archive.ubuntu.com/ubuntu/ bionic-security main restricteddeb http://in.archive.ubuntu.com/ubuntu/ bionic-security universe# deb-src http://security.ubuntu.com/ubuntu bionic-security universedeb http://in.archive.ubuntu.com/ubuntu/ bionic-security multiverse# deb-src http://security.ubuntu.com/ubuntu bionic-security multiverse