[Opm] "Failed to add key" error when trying install OPM on Ubuntu 16.04

[Alf Birger Rustad]

It sounds like you are accessing internet through a proxy server. You will find some pointers here:
https://askubuntu.com/questions/53146/how-do-i-get-add-apt-repository-to-work-through-a-proxy

Cheers,
Alf

From: Opm [mailto:opm-bounces at opm-project.org] On Behalf Of bacetti abdelmoumen
Sent: 28. april 2018 11:13
To: opm at opm-project.org
Subject: [Opm] "Failed to add key" error when trying install OPM on Ubuntu 16.04

Good morning

While trying to install OPM on Ubuntu 16.04 LTS, I got this output, and no package added.
I did the update and install software-properties-common.
What's the problem ??

ubuntu at ubuntu:~$ sudo apt-add-repository ppa:opm/ppa
 The Open Porous Media (OPM) initiative provides a set of open-source tools centered around the simulation of flow and transport of fluids in porous media. The goal of the initiative is to establish a sustainable environment for the development of an efficient and well-maintained software suite.
 More info: https://launchpad.net/~opm/+archive/ubuntu/ppa
Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keyring `/tmp/tmpl_ggfvn9/secring.gpg' created
gpg: keyring `/tmp/tmpl_ggfvn9/pubring.gpg' created
gpg: requesting key 072EF342 from hkp server keyserver.ubuntu.com<http://keyserver.ubuntu.com>
gpgkeys: key A754739BF0A72DEA5125B57E5426DBEF072EF342 can't be retrieved
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0
gpg: keyserver communications error: keyserver helper general error
gpg: keyserver communications error: unknown pubkey algorithm
gpg: keyserver receive failed: unknown pubkey algorithm
Failed to add key.
ubuntu at ubuntu:~$ apt-cache search opm-simulators
(nothing)




Regards/Cordialement
Abdelmoumen Bacetti

abdelmoumen.bacetti at sonatrach.dz<mailto:abdelmoumen.bacetti at sonatrach.dz>
bacetti.abdelmoumen at gmail.com<mailto:bacetti.abdelmoumen at gmail.com>
Linkedin<https://www.linkedin.com/in/abdelmoumen-bacetti-01a46b138/>   &    Researchgate<https://www.researchgate.net/profile/Abdelmoumen_Bacetti2>


-------------------------------------------------------------------
The information contained in this message may be CONFIDENTIAL and is
intended for the addressee only. Any unauthorized use, dissemination of the
information or copying of this message is prohibited. If you are not the
addressee, please notify the sender immediately by return e-mail and delete
this message.
Thank you
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <//opm-project.org/pipermail/opm/attachments/20180430/ef0a5963/attachment.html>