I get this error too I dont know why. Here i did a pastbin, but its in dutch.
http://paste.ubuntu-nl.org/10382/ -- fail to install with subprocess post-installation script returned error exit status 3 https://launchpad.net/bugs/91399 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
