Why do I see Failed to fetch error while dping apt-get update

Question

apt-get update in my jenkins job fails wth Http404 error on pulling docker hub related repositiories

12:38:54 + uname -a
12:38:54 Linux c612ce175fe3 4.4.0-116-generic #140-Ubuntu SMP Mon Feb 12 21:23:04 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

12:28:18 W: Failed to fetch https://apt.dockerproject.org/repo/dists/ubuntu-trusty/main/binary-amd64/Packages  HttpError404
12:28:18 
12:28:18 W: Failed to fetch https://apt.dockerproject.org/repo/dists/ubuntu-trusty/main/binary-i386/Packages  HttpError404
12:28:18 

Consecutive

Answer 1

I have the same problem on several older Ubuntu test systems. Finally found this notice when searching the URL with the 404 error https://apt.dockerproject.org/

Notice: Shutting down dockerproject.org APT and YUM repos 2020-03-31

Docker will be shutting down the deprecated APT and YUM repositories hosted at "dockerproject.org" and "dockerproject.com" on the 31st of March 2020.

We noticed that this project is referencing one of these repositories, and recommend updating to use the "download.docker.com" repository to prevent disruption.

More info: https://www.docker.com/blog/changes-dockerproject-org-apt-yum-repositories/

My fix was to edit either /etc/apt/sources.list.d/docker.list or /etc/apt/sources.list and comment out the old line and add a new the new line. For my raspberry pi I used [arch=armhf] instead of [arch=amd64], hope this helps.

sudo vi /etc/apt/sources.list.d/docker.list

make this change

#       deb https://apt.dockerproject.org/repo ubuntu-trusty main
deb [arch=amd64] https://download.docker.com/linux/ubuntu trusty stable

Ockham

This fixed the Failed to fetch https://apt.dockerproject.org/repo/dists/ubuntu-trusty/main/binary-amd64/Packages Could not resolve host: apt.dockerproject.org error, for me (for sudo apt-get update). Thanks. I did need to run y-ppa-manager to fix one subsequent issue. – Azral

I also had to re-add the GPG key after updating the sources list with curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - - docs.docker.com/engine/install/ubuntu/… – Chignon

Answer 2

I faced on same issue. But I made a following change in docker.list file.

sudo nano /etc/apt/sources.list.d/docker.list

and made a following change.

# deb https://apt.dockerproject.org/repo ubuntu-trusty main

And then,

sudo apt-get update

It did work for me. Thank you.

Gowon