Image set with "$" works offline but not online

Online experiments
1

Description of the problem:

I have set an image component to dispaly images in this way:
$"istruzioni6_" + expInfo['sessione'] + ".png"

This works in the builder, but when I try the experiment online I get this error:

when setting the image of ImageStim: image_13
when getting the value of resource: istruzioni6_1.png
unknown resource

The strange thing is that I also have a bunch of loop set in the same way (e.g. $"2back_task" + expInfo['sessione'] + expInfo['condizione'] + ".xlsx") and they work fine both online and offline.

Does anyone have a solution to my problem?
Thank you!

tandy

2

The issue seems to be that you need to add the resource in the online tab of Experiment Settings, and nothing specific to the use of the $.