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Thread: Error 9 problem: error messages appearing in TrackPerformance.txt (case 34536)

  1. #1
    Join Date
    Feb 2014
    Posts
    15

    Error 9 problem: error messages appearing in TrackPerformance.txt (case 34536)

    To whom this may concern:
    I am currently trying to use DT 2016 to display three images in a row, with the second one either being target or foil, and collect RT for each trial. A standard Go-No-Go Task.
    My team came up with this solution (see attached file), which seems to run fine, but produces error message and stores in TrackPerformance.txt under DirectRT folder. Here's how it looks like:

    Subject 999, 2019-05-13, 오후 3:57:41, Finished. 0 Errors/Warnings.


    Subject 999, 2019-05-13, 15:57:55.81 pm, v2018.1.107, Initial Display: 1920x1080, 32-bit colour, 60hz or 16.67ms/screen
    Elapsed Time: 424045656ms, block 0, trial 0, stim 2, Error 445, Object doesn't support this action--may be a problem switching to the requested display settings (resolution and/or color depth), on line 440, during Init of Form DDFullScreen
    Subject 999, 2019-05-13, 오후 3:57:59, v2018.1.107, Session Display: 1920x1080, 32-bit colour, 60hz or 16.67ms/screen
    Elapsed Time: 2840ms, block 1, trial 2, stim 1, Error 9, Subscript out of range, on line 200, during FlipScreen of Form DDFullScreen
    Elapsed Time: 3609ms, block 1, trial 3, stim 1, Error 9, Subscript out of range, on line 200, during FlipScreen of Form DDFullScreen
    .....(zip).....
    Elapsed Time: 7270ms, block 1, trial 8, stim 1, Error 9, Subscript out of range, on line 200, during FlipScreen of Form DDFullScreen
    Elapsed Time: 8042ms, block 1, trial 9, stim 1, Error 9, Subscript out of range, on line 200, during FlipScreen of Form DDFullScreen
    Subject 999, 2019-05-13, 오후 3:58:11, Finished. 9 Errors/Warnings.


    My question would be:
    1. Should I be concerned? The RT Log seems fine at this point and no pop-up windows complaining about errors yet.
    2. If I should be concerned... is there any way to improve/fix this issue?

    Cheers,

    "Raymond" Byungho PARK
    New DirectRT user (since 2019)
    Attached Files Attached Files
    Last edited by jason_reed; 05-13-2019 at 11:06 AM.

  2. #2
    Join Date
    Feb 2013
    Posts
    1,089
    A outward bound TTL signal must be followed by another stimulus—it can be any but the last stimulus on a trial. Try adding a blank stimulus (~ in the stim cell displayed for 0 seconds in the corresponding time cell) on the trials in your current .csv file where you are sending a ttl signal. Then try running it again to see if the error messages persist.
    Jason Reed
    Empirisoft Software Support Specialist

  3. #3
    Join Date
    Feb 2014
    Posts
    15

    Issue resolved.

    Thank you -- this issue has been resolved now.

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