Materials preloaded but not shown in the experiment

[anitajookyeong]

Hello, I am having problems with loading images and audio files in the experiment.

I know that it is not the problem of accessing the zip file from my server. I made a practice trial using a small zip file and it worked perfectly. Also, according to the Debug function, downloading and preloading the zip folders was successful. However, when the experiment begins, I don’t see any images nor hear any audio files. It only gives me texts.

I wonder if I am having this problem because having 12MB of materials for one experiment is too much?
What can I do to solve this problem?

[Jeremy]

Hello,

Would you mind sharing the demonstration link to your project, either here or at support@pcibex.net?

Jeremy

[Jeremy]

The problem was coming from a trailing / at the end of the URL pointing to the zip file in PreloadZip: the Log tab from the Debug window gives a warning that the “entry […] is not a valid URL” (I will move this to the new Warning tab in the next release of PennController

Jeremy

[anitajookyeong]

Thank you for pointing out the problem!
However, that does not seem to be the main reason why I don’t see the images/audios because, for the practice trial, both images/audios were zipped together in the “practicetask2.zip” file. This zip file was pre-downloaded successfully but I still didn’t get any images/audios for the practice trial.

[Jeremy]

Did you clear your cache and refresh the page where you run your experiment? Your practice material has always preloaded just fine for me, I was just having preloading problems for the experimental trials (which I no longer experience since you fixed the trailing /)

Jeremy

[anitajookyeong]

Oh you are right! After removing the cache, I got all the materials in order. I did remove the cache once in a while when I was setting up the experiment, but I didn’t know it was this crucial in running the experiment.
Thank you so much for the help!

[Author]

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