URL of experiment: https://gitlab.pavlovia.org/coraordway/dash-imt-eefrt
Description of the problem:
Hello,
My experiment works locally and begins well enough online, but then I get the error message, “TypeError: Cannot read property ‘status’ of undefined”. The issue seems to be with reading the status of one of the key responses (key_resp_2). However, I don’t know how it is set up any differently from the preceding keypresses, which work fine. I do have separate (each frame) code that uses the length of key_resp_2.keys to determine the position of a line (the participant is supposed to press keys to move the line up). I am using PsychoPy 3.1.5 and Chrome.
The status error shows up right at the beginning here:
// *key_resp_2* updates
if (t >= 0 && key_resp_2.status === PsychoJS.Status.NOT_STARTED) {
// keep track of start time/frame for later
key_resp_2.tStart = t; // (not accounting for frame time here)
key_resp_2.frameNStart = frameN; // exact frame index
key_resp_2.status = PsychoJS.Status.STARTED;
// keyboard checking is just starting
psychoJS.window.callOnFlip(function() { key_resp_2.clock.reset(); }); // t = 0 on screen flip
psychoJS.eventManager.clearEvents({eventType:'keyboard'});
}
The added code block that references key_resp_2 is:
y = key_resp_2.keys.length/200 - .4 ;
line_position = [-.35, y];
if (y >= line_pos) {
return Scheduler.Event.NEXT;
}
The polygon (line) then uses “line_position” for the shape’s position and is set to update every frame.
Thank you for any help!