Syntax error while running buildout

Compiling Python files.
  File "/opt/plone/zeocluster/lib/python2.7/site-packages/pexpect/async.py", line 16
    transport, pw = yield from asyncio.get_event_loop()\
                             ^
SyntaxError: invalid syntax

Running plone 5.0.6

Any ideas?

Nevermind, just deleted that package. It was not needed.