[solved] Testing EyeTribe with PyGaze template experiment ends in NoneType error

Comments

• sebascr

  May 2016 edited 8:20AM

  As an update, i checked the log of the EyeTribe and it brings up this error.

  2016-05-13 17:42:29.815|2340015440|I|Validating config chosen device
  2016-05-13 17:42:42.817|2427200557|I|New connection detected [176093691904]
  2016-05-13 17:42:43.853|1886814084|I|Setting up device properties
  2016-05-13 17:42:43.899|1886814084|I|The device stream has started
  2016-05-13 17:42:43.910|2427200557|I|Tracker started
  2016-05-13 17:42:43.910|2427200557|I|Creating new connection [176093691904]
  2016-05-13 17:42:47.213|2427200557|E|Invalid JSON format: [{
  "category": "calibration",
  "request": "pointend",
  }]
  2016-05-13 17:42:48.337|2427200557|I|Connection removed [176093691904]
  2016-05-13 17:42:49.133|1886814084|I|The device stream has stopped
  2016-05-13 17:42:49.137|2427200557|I|Tracker stopped
  

  I've tried a lot of different approaches but still can't make it work.
• sebascr

  May 2016 edited 8:20AM

  Last update:
  I asked in the eyetribe forum and this is what they answered. I leave the link to the topic here in case anybody else has the same problem.

  EyeTribe Forum
• sebastiaan

  May 2016 edited 8:20AM

  Hi,

  Thanks for bringing this to our attention. I don't have any opportunity to look at it right now (maybe @Edwin does?), but it's on the radar.

  Cheers,
  Sebastiaan

  
  
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• ejhorowitz

  June 2016 edited 8:20AM

  Hi there,

  I'm getting the exact same error message under the same circumstances. I know you folks are probably busy right now, but I just figured I'd add my name to the list in the hopes of getting this resolved faster. Thanks!
• jevmann

  June 2016 edited 8:20AM

  Hi there

  I am getting the same error (Windows 10, Python 2.7.10, latest version of OpenSesame).

  Starting experiment as ExperimentProcess-3
  Expyriment  (Python 2.7.10) 
  Main file: C:\Program Files (x86)\OpenSesame\opensesame.exe (6a8b7f)
  openexp.sampler._legacy.init_sound(): sampling freq = 48000, buffer size = 1024
  openexp.sampler._legacy.init_sound(): mixer already initialized, closing
  experiment.run(): experiment started at Sat Jun 04 13:09:05 2016
  
  Unexpected error
  
  item-stack: experiment[run].pygaze_init[run]
  exception message: 'NoneType' object has no attribute '__getitem__'
  time: Sat Jun 04 13:09:19 2016
  exception type: TypeError
  
  Traceback:
    File "dist\libqtopensesame\misc\process.py", line 140, in run
    File "dist\libopensesame\experiment.py", line 397, in run
    File "dist\libopensesame\item_store.py", line 95, in execute
    File "dist\libopensesame\item_store.py", line 110, in run
    File "dist\libopensesame\sequence.py", line 50, in run
    File "dist\libopensesame\item_store.py", line 110, in run
    File "C:\Program Files (x86)\OpenSesame\plugins\pygaze_init\pygaze_init.py", line 212, in run
    File "dist\pygaze\_eyetracker\libeyetribe.py", line 208, in calibrate
    File "dist\pygaze\_eyetracker\pytribe.py", line 1236, in pointend
  TypeError: 'NoneType' object has no attribute '__getitem__'
  
• sebastiaan

  June 2016 edited 8:20AM

  I still don't have an EyeTribe with me to actually verify this, but: The fact that something that definitely did work before now seems broken for a lot of people suggests that it may be due to an update of the EyeTribe SDK.

  I have lasted tested it (successfully) with v0.9.56 of the EyeTribe SDK for Windows. Right now, v0.9.77 is also available. If you downgrade to 0.9.56, does it work again?

  
  
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• Edwin

  June 2016 edited 8:20AM

  Hi guys,

  With some help from Martin from the EyeTribe team, the issue was debugged. Fixing it is on the top of my TODO list once I get back into the office. Should be solved around Tuesday.

  For the curious: The issue was on our side, with a slightly malformed json message (with a trailing comma). The newest version of the EyeTribe server is a bit more picky with these things, and decided it didn't like the extra comma.

  Cheers,

  Edwin
• jevmann

  June 2016 edited June 2016

  @sebastiaan You are probably right. I reinstalled OpenSesame and downgraded to SDK 0.9.56 and now the callibration works perfectly.

  @Edwin Thanks for the update, but given my deadlines I'll stick with this configuration for now ;-)
• Edwin

  June 2016 edited 8:20AM

  BOOM! Should be finished with the this commit. Download PyGaze from GitHub to try it out.
• sebastiaan

  June 2016 edited 8:20AM

  Thanks Edwin!

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!