I'm having the same symptoms as ticket 2900065. I tried the listed solution but it still did not work. A friend is also having the same problems (we are one different internet connections if that's important).
link to old ticket: https://sourceforge.net/tracker/?func=detail&aid=2900065&group_id=85796&atid=577329
It doesn't seem pydev can do anything there as it's related to ubuntu. In this case, have you tried installing it as a zip file?
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