Problem loading media_player_mpy item into trial sequence
Hi, I'm new to OpenSesame, having recently switched over from E-Prime. I'm setting up the skeleton of an RT experiment but can't get OpenSesame to allow the dragging of an media_player_mpy item into my trial sequence. I'm running version 3.1.6 so already have the required plug in. I'm guessing this issue is specific to the fact I am a Mac user (OS El Capitan 10.11.6)? The entire error message is pasted below.
Would appreciate any help on this - even it is confirmation that I can't continue with this combo of soft and hardware...... 
--K
Error message:
Traceback (most recent call last):
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/libqtopensesame/widgets/tree_overview.py", line 753, in dropEvent
self.drop_event_item_new(data, e)
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/libqtopensesame/widgets/tree_overview.py", line 672, in drop_event_item_new
item, new_items = self.drop_get_item_snippet(data)
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/libqtopensesame/widgets/tree_overview.py", line 560, in drop_get_item_snippet
catch_exceptions=False)
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/libqtopensesame/misc/qtitem_store.py", line 105, in new
script=script)
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/libopensesame/item_store.py", line 164, in new
u"Failed to load plugin '%s'" % _type, exception=e)
osexception:
Failed to load plugin 'media_player_mpy'
item-stack:
exception message: Unable to download 'ffmpeg.osx'. Perhaps there is a no internet connection? If there is, please report this problem.
time: Wed Mar 29 10:05:40 2017
exception type: IOError
Traceback:
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/libopensesame/item_store.py", line 161, in new
self.experiment, script, self.experiment.item_prefix())
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/libopensesame/plugins.py", line 360, in load_plugin
item_module = import_plugin(plugin, _type=_type)
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/libopensesame/plugins.py", line 331, in import_plugin
return imp.load_source(plugin, path)
File "/Applications/OpenSesame.app/Contents/Resources/share/opensesame_plugins/media_player_mpy/media_player_mpy.py", line 42, in
import mediadecoder
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/mediadecoder/init.py", line 6, in
from mediadecoder.decoder import Decoder
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/mediadecoder/decoder.py", line 9, in
from moviepy.video.io.VideoFileClip import VideoFileClip
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/moviepy/video/io/VideoFileClip.py", line 3, in
from moviepy.video.VideoClip import VideoClip
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/moviepy/video/VideoClip.py", line 20, in
from .io.ffmpeg_writer import ffmpeg_write_image, ffmpeg_write_video
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/moviepy/video/io/ffmpeg_writer.py", line 15, in
from moviepy.config import get_setting
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/moviepy/config.py", line 38, in
FFMPEG_BINARY = get_exe()
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/imageio/plugins/ffmpeg.py", line 52, in get_exe
exe = get_remote_file('ffmpeg/' + FNAME_PER_PLATFORM[plat])
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/imageio/core/fetching.py", line 98, in get_remote_file
_fetch_file(url, filename)
File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/site-packages/imageio/core/fetching.py", line 154, in _fetch_file
os.path.basename(file_name))
IOError: Unable to download 'ffmpeg.osx'. Perhaps there is a no internet connection? If there is, please report this problem.
Comments
Searching the forum for "ffmpeg.osx" might help.
Best,
Jarik
Hi Katheryn,
This is a known problem that occurs for some people and is likely caused by a firewall. We are hoping to integrate the ffmpeg.osx in one of the future versions of OpenSesame (so that it doesn't need to be downloaded anymore), but for now the problem can be solved as described in http://forum.cogsci.nl/index.php?p=/discussion/comment/9326/#Comment_9326