All elements are ''undefined'' on Pavlovia

[lucy_s]

If this template helps then use it. If not then just delete and start from scratch.

OS (e.g. Win10):
PsychoPy version (e.g. 2024.2.4 Py 3.8): PsychoJS 2025.1.1, also v2025.1.1 for PsychoPy
URL of experiment: Decision-Making [PsychoPy]

Link to the most relevant existing thread you have found: Undefined parameters in Pavlovia

The issue:

So there have been a series of issues, all related to PsychoPy generated javascript.

First, util seemed to be defined multiple times (so I removed it from a function name it was added to). Now that part is fixed, however - after that I keep getting ______________ is not defined errors. For every single parameter. These are automatically generated parameters, not ones I created with script (those are defined). I am unsure what to do - this is thousands of parameters. I think it could be due to the fact that I changed original code - but that did not run either + now it at least loads the settings screen.

Help, please?

[lucy_s]

to add - the experiment was created in builder locally (on my device) but all of the files are in the gitlab project repo

also I know very little about JS, my programming knowledge is based on Python + R so I unfortunately do not know if I did something so wrong in the syntax that it kills the whole set up:(

[wakecarter]

Wakefield's Daily Tips

ReferenceError: varName is not defined This is one of the most common errors in online experiments [image] It is also one of the easiest to solve. The issue is one of “scope”. To define a variable so it has scope across your whole experiment, all you have to do is assign it a value. Don’t edit your JavaScript to add “var” or “let” commands. To give your variable scope assign the value in a Begin Experiment code component tab outside any clauses (i.e. no Python indents). [image] I usually s…

Wakefield's Daily Tips

The answer is (almost) never to edit the generated code When you create an experiment in Builder, PsychoPy then generates a Python file which you can use to run the experiment locally and two JavaScript files suitable for running the experiment online (using current and older browsers). If something doesn’t work, there may be a temptation to make edits directly to the Python/JavaScript files rather than the Builder file. However, this is generally a bad idea for two reasons: The process is o…

[lucy_s]

Thank you for the tips, however - then I unfortunately still have an issue with ‘‘util’’. Particularly, it says that there is an error with util because it was already defined. The error relates to this line

I am a bit confused as to what this means - given that this is a generated line.

[wakecarter]

Are you using the word util to mean anything?

Wakefield's Daily Tips

Find in experiment I don’t use the PsychoPy Builder menu items much but this one is particularly useful, especially for tracking down the sources of name conflicts. This feature is currently in the Experiment menu but is moving to the Edit menu in 2025.1.0. The keyboard shortcut is Ctrl+F. [image] [image] If you double-click on one of the lines it will open that component. Note that multiple references in the same code component are not listed separately.