Path related issue

Online experiments
1

URL of experiment: Pavlovia

Description of the problem:
Hello,
My experiment works well offline in my PsychoPy Builder on my Windows machine. But it does not work online when I test it in Pilot.
It gives me this error:

Untitled
Untitled1277×849 50.5 KB

As you can see, it cannot recognize the png image, while the path is fully correct.

I am wondering if anyone faced a similar issue before?

Thanks,
Reza

2

Have you tried converting to another format, say, jpg?

3

Hi, thanks for your reply. No I did not. the thing is that it was working for my first pilot. I changed some parts of the experiment, but they are not related to the directory or pathes.

4

Do you have all of your images in the same folder as the experiment file? I understand that PsychoPy online doesn’t let work with relative paths.

Best wishes,

Wakefield

5

Hi, thanks for your reply.
My folders are like this

Untitled
Untitled590×611 25.2 KB

I have all my images in ./maps/train/
And saved all paths in the CSV files.

It was working around one month ago when I have done my first pilot. But, now it does not!

Best,

6

@apitiot
Hi Alain,

Would you please help me on this issue?

Many thanks.

Reza

7

I’m now getting the same error in local debug mode, but my image is being found when piloting on Pavlovia.

8

Hi,
Thanks for letting me know.

Would you please show me how you define relative path and CVS file containing paths (if you have)?

Thanks in advance.

9

@jon
Hello Jon,
Would you please help me to fix this issue? I need to start my experiment very soon.

Thanks a lot.

10

I think the issue is just that you’ve referred to the path as
./train/02 - map.png
which then maps onto a url like
https://run.pavlovia.org/user/study/./train/02 - map.png
(note the dot in the middle). That won’t make sense in a browser.

In PsychoPy/Python the path is going to be treated as relative anyway, so you don’t need or want the unix-style ./ at the beginning.

On top of that definite issue, I don’t know what will happen to your filename given the spaces. That’s also something that could end up causing trouble - URLs can’t have spaces and I don’t know whether these will be intelligently converted to the internet space character ("%20"). They might be OK but they might not

12

Hi,
Thanks for your reply.
I removed dots and spaces in the relative paths and push the new file into gitlab. But, when I run the experiment pilot, it still uses the last version. So I cannot check whether the issue was fixed or not. I also signed out and signed in again, and even checked with a different browser, but pilot runner still uses the previous version of paths. Is there a way to delete the pilot/run experiment cash or force it to use last version of data in the gitlab?

cheers,

13

Possibly it’s just cached in the browser. Try forcing a reload of the whole page with Shift-R. Pages (and their associated javascript) are typically cached and re-used.

14

To fix the cash issue, simple tricks did not work. So, I had to transport my project to a new repo. Now it works. I defined the relative paths like this: maps/test/image.png
Without dot and / in the beginning.

Many thanks.

Cheers