URL of experiment: Pavlovia Description of the problem: My experiment was running perfectly on PsychoPy, but when I transferred it to Pavlovia it got stuck on the ‘initializing experiment’ screen. Using the Developer Tool, I looked at the line of code that gave the error “Cannot read property ‘crea…

Do you have a variable called info? Or info.create? Try changing the name?

I didn’t create a variable named info in python, but I think it was generated automatically when I translated to JavaScript. I am not sure what it is or does, but this is how it was created if it helps: var htmlClass = (function (info) { // (C) Andrea Giammarchi - @WebReflection - MIT Style var …

I don’t recognise any of that. What is it supposed to do? Can you test your code without it?

This is the first place it is initialized, but info is used quite a few times throughout the code. So I don’t think I can get rid of it.

The line of code the Developer Tool led me to is not on my main .js file. It is in something called document-register-element-node. I’m not sure I’m looking at the right place to fix my code. Any suggestions?

Were there any error messages that gave a line number of your script?

Unfortunately not. I edited my experiment through the Builder a little bit, and now it does not get stuck at “initializing screen” but it keeps giving me other errors as I go through. I’m wondering if any of those are related to this problem.

If you set it to running, add a few credits and disable saving partial data then I could take a look at the error messages.

I disabled saving partial data, but unfortunately I can only set it to piloting as my institution has not allowed me any credits yet. Currently, I believe the problem is when I am using “data.importConditions” to read from my files. I get the error data not defined. I have seen some solutions where …

primeCond = randint(0, 2) fileName = str(primeCond) + 'list.xlsx' primeList=data.importConditions(fileName) This is what I am referring to when I say I generate the names of files. I have multiple similar routines.

Cannot read property 'create' of undefined

Online experiments

ladinboluk April 6, 2021, 6:22am 12

I have started a new thread for this issue:

Topic		Replies	Views
Type error: Cannot read properties of undefined (reading '_psychoJS') Online experiments pavlovia	3	891	May 13, 2022
Online experiment - TypeError: Cannot read properties of undefined (reading '_psychoJS') Online experiments	1	323	March 12, 2024
Stuck on "initializing experiment" Online experiments pavlovia	3	573	April 6, 2021
Undefined parameters in Pavlovia Online experiments	8	1597	March 26, 2020
Problem running experiment on Pavlovia: TypeError: Cannot read property '_psychoJS' of undefined Online experiments pavlovia	7	1005	October 13, 2021

Cannot read property 'create' of undefined

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