Psychopy freezes while syncing experiment

Builder
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1

I’ve tried syncing my experiment with a code component in python, but there was a problem with variables (refer to: Variable not defined pavlovia - #3 by mykolas_gudaitis), it synced, but didn’t work. I’ve corrected the code component and wrote the same code in JS so I could sync the experiment, like the following:

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But now when I try to sync the experiment, psyhopy freezes and doesn’t even upload it to pavlovia. There are some .mp3 and .png files in the experiment if this helps

2

I’m quite sure the JS has a syntax error. If you copy-paste the code I can make a suggestion on how to fix it. Still, I wouldn’t expect that to make the Builder freeze though. If you disable this code component, does exporting work again?

3

I’ve tried disabling it, but still the same issue remains:

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This table pops up and then freezes. The JS code I’m using:
randDuration = function(1.000, 2.001) {
return Math.floor(Math.random() * (2.001 - 1.000) ) + 1.000;
}

4

Looking at the Python, I guess that this is what you are after:
randDuration = Math.floor(Math.random() * (2.001 - 1.000) ) + 1.000;

About the freezing: how about exporting to HTML (without syncing)? Are you using the latest version of PychoPy (2021.1.2)?

5

I corrected the JS code, but exporting to HTML still doesn’t work, the result is about the same:

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I’m using the latest Psychopy version (2021.1.2)

6

Not sure what is going on then, but it seems an issue on the builder side of things. I recategorized your post so that people with the right expertise are alerted.

1 Like
7

I downgraded psychopy to 2020.2.4 version and the experiment synced successfully

8

Look closely at this formula

randDuration = Math.floor(Math.random() * (2.001 - 1.000) ) + 1.000;

randDuration = Math.floor(Math.random() * (1.001) ) + 1.000;

randDuration = Math.floor(number between 0 and 1.001) + 1.000;

randDuration = 0 + 1.000;

randDuration = 1; (in 1000 out of 1001 cases or thereabouts)

9

LOL, good point :slight_smile: