As you've discovered there was a syntax error in your sources.list file for equinox ppa. This may have been due to a bug in add-apt-repository as it looks like the 'm' in 'main' is missing from that sources.list. I'll move the bug to that pacakge.
As you've discovered there was a syntax error in your sources.list file for equinox ppa. This may have been due to a bug in add-apt-repository as it looks like the 'm' in 'main' is missing from that sources.list. I'll move the bug to that pacakge.