Traceback (most recent call last):


 "./reproducehbondissue.py", line 45, in <module>

distance=hbonddist, angle=hbondangle)


 "/usr/local/lib/python2.7/dist-packages/MDAnalysis/analysis/hbonds/hbond_analysis.py", line 612, in __init__

self._update_selection_2()


 "/usr/local/lib/python2.7/dist-packages/MDAnalysis/analysis/hbonds/hbond_analysis.py", line 798, in _update_selection_2

self._s2_acceptors = self._s2.select_atoms(
AttributeError: 'list' object has no attribute 'select_atoms'

Traceback (most recent call last):


 "/usr/local/lib/python3.6/site-packages/haffmpeg/core.py", line 114, in open

stderr=stderr


 "/usr/local/lib/python3.6/asyncio/subprocess.py", line 225, in create_subprocess_exec

stderr=stderr, **kwds)


 "uvloop/loop.pyx", line 2601, in subprocess_exec


 "uvloop/loop.pyx", line 2561, in __subprocess_run


 "uvloop/handles/process.pyx", line 588, in uvloop.loop.UVProcessTransport.new


 "uvloop/handles/process.pyx", line 59, in uvloop.loop.UVProcess._init


 "uvloop/handles/process.pyx", line 48, in uvloop.loop.UVProcess._init


 "uvloop/handles/process.pyx", line 270, in uvloop.loop.UVProcess._init_options


 "uvloop/handles/process.pyx", line 444, in uvloop.loop.UVProcessTransport._init_files


 "uvloop/handles/pipe.pyx", line 168, in uvloop.loop.WriteUnixTransport._open


 "uvloop/handles/pipe.pyx", line 29, in uvloop.loop.__pipe_open

ExistsError: [Errno 17] 
 exists
