Unkown Resources Error

Hello Psychopy Community!
I tried to upload my experiment, which is working in Psychopy, to Pavlovia. I get the Error:

Unfortunately we encountered the following error:

  • when importing condition: Fotos2.xlsx
  • when getting the value of resource: Fotos2.xlsx
  • unknown resource

Try to run the experiment again. If the error persists, contact the experiment designer.

So i searched youtube and pavlovia and come up on a code component, that should fix my problem:


The two excel files are not in the folder of the resources.

Does any one has an idea how to correct that?
Thank you in advance!


Add the excel-files via the experiment-settings online tab and sync.

Best wishes Jens

Thanks it worked! But a new problem appeared. I have a fixation cross that appears randomly for a duration of 1 s.

$Zeit = Time
Offline it does work, but online its not showing the cross. When i set the fixation cross on a specific time it works online. But using the excel file via $zeit does not work.
has anyone any recommendation for that problem?


it it better to start a new topic one you marked a topic as being solved. Do you need the random onset from the Excel-file or would some code do it?

In the Begin Experiment tab of a code-element in the relevant routine add

randOnset = 0

In the Begin Routine tab add

iti = randOnset(10,20)*0.05

this gives you a random onset between 0.5 and 1 second. Add $randOnset as a Start time of your fixation cross.

Best wishes Jens