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_