[Bug 1920753] Re: Cannot install build-essential on fresh Ubuntu 20.04.2 installation

[Tigran Aivazian]

I have just now re-installed the system while unticking the option
"Download upgrades while installing" during the installation. And then
proceeded to do "sudo apt install build-essential gcc g++" and it worked
just fine. Then I did "sudo apt update ; sudo apt upgrade" and
everything is working fine now.

So, it remains a mystery why it was possible to do a simple complete
install resulting in build-essential not installable.

Since I can't reproduce this anymore (I am not going to reinstall with
the option "Download updates while installing") you can close the issue,
if you wish. Or try reproducing it, but then "Download updates while
installing" obviously depends on time, so whatever it was causing a few
days ago it may or may not cause again...

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to build-essential in Ubuntu.
https://bugs.launchpad.net/bugs/1920753

Title:
  Cannot install build-essential on fresh Ubuntu 20.04.2 installation

Status in build-essential package in Ubuntu:
  New

Bug description:
  After a fresh install of Ubuntu 20.04.2 (followed by upgrade to the
  very latest packages) I installed gcc and then wanted to install
  build-essential, but it fails with the following error message:

  $ sudo apt install build-essential
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies.
   build-essential : Depends: libc6-dev but it is not going to be installed or
                              libc-dev
                     Depends: g++ (>= 4:9.2) but it is not going to be installed
  E: Unable to correct problems, you have held broken packages.

  This means that nothing can be compiled, obviously.

  Also, g++ cannot be installed either:

  $ sudo apt install g++
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies.
   g++ : Depends: g++-9 (>= 9.3.0-3~) but it is not going to be installed
  E: Unable to correct problems, you have held broken packages.
  $ gcc --version
  gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
  Copyright (C) 2019 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/build-essential/+bug/1920753/+subscriptions