I am trying to install graph-tool on a xubuntu virtualbox being hosted on a Windows 10. I've added the requisite lines deb http://downloads.skewed.de/apt/xenial xenial universedeb-src http://downloads.skewed.de/apt/xenial xenial universe to my /etc/apt/sources.list, but when I run a sudo apt-get update, I get the following errors: W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/xenial/InRelease Temporary failure resolving 'us.archive.ubuntu.com'W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/InRelease Temporary failure resolving 'security.ubuntu.com'W: Failed to fetch http://downloads.skewed.de/apt/xenial/dists/xenial/InRelease Temporary failure resolving 'downloads.skewed.de'W: Failed to fetch http://ppa.launchpad.net/noobslab/apps/ubuntu/dists/xenial/InRelease Temporary failure resolving 'ppa.launchpad.net'W: Some index files failed to download. They have been ignored, or old ones used instead. If any one has come across this problem before, please let me know how to fix it. Thanks. El Miércoles 15 de octubre de 2014 20:50, Guillaume Gay <guillaume@mitotic-machine.org> escribió: You need to replace 'main' by 'universe' in your deb lines Le 15/10/2014 20:35, Andy Maloney a écrit : I am trying to install graph-tool on a Trusty Ubuntu virtualbox being hosted on a Mac. I've added the requisite lines deb http://downloads.skewed.de/apt/trusty trusty main deb-src http://downloads.skewed.de/apt/trusty trusty main to my /etc/apt/sources.list, but when I run a sudo apt-get update, I get the following errors: W: Failed to fetch http://downloads.skewed.de/apt/trusty/dists/trusty/Release Unable to find expected entry 'main/source/Sources' in Release file (Wrong sources.list entry or malformed file) E: Some index files failed to download. They have been ignored, or old ones used instead. I have the main, universe, and multiverse repositories available. If any one has come across this problem before, please let me know how to fix it. Thanks. Andy_ _______________________________________________ graph-tool mailing list graph-tool@skewed.de http://lists.skewed.de/mailman/listinfo/graph-tool _______________________________________________ graph-tool mailing list graph-tool@skewed.de http://lists.skewed.de/mailman/listinfo/graph-tool