Error: The argument should be an array of numbers of length 3

[andreonj]

URL of experiment: https://run.pavlovia.org/andrehsu/relative-recency

Description of the problem:
I have encountered an error of ‘the argument should be an array of numbers of length 3’ when I am trying to pilot the experiment. I wonder if the problem would be relevant to the fill colour of the polygon stimuli in the experiment. It would be great to hear any advice! Thank you!

Andre

[thomas_pronk]

Hey Andre,

To find out if this is the problem, you could pinpoint the line of code where this error originates from. See this tutorial: tutorial_js_semantic_error [PsychoPy]

Best, Thomas

[wakecarter]

Might this be your solution?

Pavlovia: Argument should be an array of numbers of length 3

URL of experiment: https://pavlovia.org/pasoba/fsstep Description of the problem: I want Psychopy to drag a new Polygon colour every trial from my conditionsfile. It worked fine when I had set the Polygon colour to “constant” but since i changed it to “set every repeat” I always get the error “the argument should be an array of numbers of length 3”. In my conditionfile I specified the colour as -0.7,-0.7,-0.7 (rgb colour space) so there should be 3 numbers. I had brackets around the numbers …

[andreonj]

Dear Thomas,
Thank you very much for your comment and the tutorial is super helpful. I think I have spotted the mistake now!

[andreonj]

Dear wakecarter,
Thank very much for your advice. I went through my experiment again and the error was caused by missing comma in defining the fill colour of the polygon, thank you very much!