Full-upgrade to Debian testing fails due to libc6-dev : Breaks: libgcc-8-dev

Question

I've just switched to bullseye (see sources below)

deb http://deb.debian.org/debian/ testing main contrib non-free
deb-src http://deb.debian.org/debian/ testing main contrib non-free

deb http://deb.debian.org/debian/ testing-updates main contrib non-free
deb-src http://deb.debian.org/debian/ testing-updates main contrib non-free

deb http://deb.debian.org/debian-security testing-security main
deb-src http://deb.debian.org/debian-security testing-security main

deb http://security.debian.org testing-security main contrib non-free
deb-src http://security.debian.org testing-security main contrib non-free

The update and upgrade went fine, but full-upgrade fails due to the following error message:

The following packages have unmet dependencies:
 libc6-dev : Breaks: libgcc-8-dev (< 8.4.0-2~) but 8.3.0-6 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

From what I see on the packages.debian.org, Debian testing should have libgcc-8-dev: 8.4.0-4, so I don't see why an older version is to be installed.

How can I fix this, to finalize the bullseye full-upgrade?

Solution 1

Installing gcc-8-base (sudo apt install gcc-8-base) appeared to do the trick for me and fix the problem for me.

Solution 2

If it still does not work try: apt-get install gcc-9-base

Solution 3

This worked for me after trying everything else:

apt-get remove libgcc-8-dev

Comments

[flux9998]

sweet! I've been going through trying to update the individual packages to no avail, this did the trick though thanks!

[MKesper]

Right now this would even remove apt, so not a good idea. Sadly this isn't a planned transition (release.debian.org/transitions).

[Macindows]

worked for me. now im thinking whether gcc-10 would've also worked?

[Amith]

Installing this removes a bunch of packages like dolphin evince g++ g++-8 gcc-8-base:i386 gdm3 gnome gnome-contacts gnome-core gnome-session gnome-shell gnome-shell-extensions gnome-shell-pomodoro gnome-todo Why? Even my desktop kde-plasma

[John Smith]

Definitely seems to have worked for me. Thanks!

[Admin]

The answer is not the solution to this issue. According to the Debian Buster release notes you should prepare for the operating system minimal system upgrade: sudo apt upgrade --without-new-pkgs and then you can do a full upgrade: sudo apt full-upgrade

[Admin]

This didn't work for me, going from raspbian buster to raspberry pi OS bullseye.