Thanks for the reply but things still don’t work. I cut and pasted from the download page to the command line . The command string did place the proper line in my sources.list. But when i ran apt-get update I got the error "Err:22 http://ngsolve.org/files/ubuntu zesty_amd64/ Packages
404 Not Found
"
Since I can’t find a directory under ngsolve.org called files, I can only assume that there is something wrong with the URL.
Please help
Gary R.
Update: Tried command string with ngsolve.org./ and ngsolve.org/. and got the same results. The published command string has something wrong. I just doesn’t work!!!
Downloading the .deb file worked. Thanks. I’m still not sure why the other approach didn’t work. I’m not using a proxy server and have a firewall in a verizon supplied router. Haven’t had any problems before.