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

Comments

• sebascr

  May 2016 edited 12:54AM

  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 12:54AM

  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 12:54AM

  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

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• ejhorowitz

  June 2016 edited 12:54AM

  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 12:54AM

  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 12:54AM

  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?

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• Edwin

  June 2016 edited 12:54AM

  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 12:54AM

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

  June 2016 edited 12:54AM

  Thanks Edwin!

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!