on my Ubuntu 12.04.1 LTS system when I added PPA repository:
$ sudo add-apt-repository ppa:librecad-dev/librecad-daily
sudo apt-get update
I get Warnings:
W: Duplicate sources.list entry http://archive.canonical.com/ubuntu/ precise/partner amd64 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_precise_partner_binary-amd64_Packages)
W: Duplicate sources.list entry http://archive.canonical.com/ubuntu/ precise/partner i386 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_precise_partner_binary-i386_Packages)
How can I solve this problem? Can I just ignore it?
Is this a bug?
I think this has something to do with Ubuntu moving to "multiarch". See https://wiki.ubuntu.com/MultiarchSpec I've had this error several times on Precise. Seems to be benign. It's not a bug relating to LibreCAD.