debugging OpenScienceFramework

sahn

When I open 'open sesame', this message appears at the 'open sesame says...' 'Extension OpenScienceFramework misbehaved on event startup (see debug window for stack trace)' and the following at the debug window.

'Extension error

item-stack:
exception type: UnicodeDecodeError
exception message: 'utf8' codec can't decode byte 0xbe in position 9: invalid start byte....'

I'm new to this program and don't know what to do. Please help me.

Roelof

Hi Sahn,
In order to see where this error comes from it would be useful to know which version of opensesame are you running and what is your operating system?

This post suggests that for earlier versions of opensesame special characters in either the username or pathname might give a problem, but most of those problems seem to be fixed.

perhaps also useful
http://bugs.python.org/issue1681974

sahn

Thanks, Roelof!

It seems others have similar problems. I use Windows 7 and the latest version of opensesame, which is 3.1. I did change my username from Korean to English because I wanted to play a mp4 file in my folder and realized that my username caused a problem. That problem was fixed, but the above message popped up later when I reloaded the program.

Now I'm wondering if this error is critical. Actually what I wanted to do was to play a mp4 file in my folder, so I dragged visual stimuli (media_player_mpy) but it didn't work. Should I install another function to do this? 'Help' told me to use pip and I'm wondering if I need to install Python to use pip.

Cluess in Korea...

sebastiaan

Hi Sahn,

Could you post the stacktrace that you get when you see the OpenScienceFramework error? The stacktrace is a full error message that you can find in the debug window.

Now I'm wondering if this error is critical. Actually what I wanted to do was to play a mp4 file in my folder, so I dragged visual stimuli (media_player_mpy) but it didn't work. Should I install another function to do this? 'Help' told me to use pip and I'm wondering if I need to install Python to use pip.

Details! In what sense didn't it work? Did you get an error message, and if so, what was it?

You can see how to use pip in OpenSesame on this page (but I'm not sure it's relevant to your problem):

• http://osdoc.cogsci.nl/3.1/manual/environment/

Cheers!
Sebastiaan