Problems downloading artifact - error reading signed content

Question

I was just installing Ubuntu and added Eclipse (Indigo) to it. When I tried to add pydev to it I kept on getting this kind of error about halfway through the i

Answer 1

from: http://pydev.org/manual_101_install.html

Important requisite

PyDev now requires java 7 in order to run. If you don't have java 7, the update process may appear to succeed, but PyDev will simply not show in the target installation. Please double-check if you're using a java 7 vm in about > installation details > configuration before trying to install PyDev.

Eclipse 3.8 onwards is required for the latest versions of PyDev (if you need to use an earlier version of Eclipse, stick to PyDev 2.8.x).

Which version of Eclipse are you running? I'm running Ubuntu 12.04 and the Software Center serves me Eclipse 3.7.

To install 2.8.x in Eclipse, do as bohrax mentioned: unselect "Show only the latest versions of available software" and select the 2.8.x.