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:[email protected]] On Behalf Of bacetti abdelmoumen Sent: 28. april 2018 11:13 To: [email protected] 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@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@ubuntu:~$ apt-cache search opm-simulators (nothing) Regards/Cordialement Abdelmoumen Bacetti [email protected]<mailto:[email protected]> [email protected]<mailto:[email protected]> 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
_______________________________________________ Opm mailing list [email protected] https://opm-project.org/cgi-bin/mailman/listinfo/opm
