Error when importing study into both local and server JATOS installation
Hi Everyone,
I have been coding an experiment for the first time, and have gotten my experiment working well on my local JATOS server. The experiment has three components.
However, when I try to import the .jzip into either a local or server JATOS installation I receive the following error: "Import of study failed: Component is invalid".
I am using JsPsych code (v8), and the JATOS server installation is v3.9.5.
I am using Firefox 139.0.1 (64-bit).
I also get this error in the developer console:
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DateMon, 02 Jun 2025 03:06:25 GMT
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The way the files are currently structured in study_assets_root is as follows:
Main folder/Experiment 1/ CSS folder, JS folder, Stimuli (images folder), config.js, index.html
Main folder/Experiment 2/ Stimuli (images) folder, JS folder, JS pages folder, config.js, index.html
Main folder/Experiment 3/ CSS folder, config.js, index.html
Main folder/Shared Folder/ Scales folder, JS folder(contains JsPsych V8 library, config.js), Utils folder (contains jatos.js, jatos-utils, prolific-utils)
Thanks for your assistance!
Cheers,
Jesse
Comments
Hi Jesse, sorry, somehow we never got a notification of this message.
From what you described, I think you are doing this wrong. If the study works on your local JATOS, you should first export it. Study Bar -> Export Study.
Did you do that first, or did you zip this by hand?
Hi Elisa,
No problem at all, thanks for getting back to me!
(and sorry I missed your reply!)
I did use the local JATOS study export function as described to generate the .jzip, but was still having trouble importing the .jzip into the server version of JATOS.
I did figure out why the study was having trouble importing: It seemed that I needed to have an index.html file for each individual component in the study assets folder of the study, rather than a single index.html file.
For example, with three components, rather than having a central index.html file, I needed to restructure my experiment so in the root assets folder for the study I had index-component1.html, index-component2.html, index-component3.html.
This seemed to resolve it. :)
Thought I would update in case anyone else comes across this problem.
Cheers,
Jesse