kri
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Hi Craig! Nice you found the error and thanks for posting your results! Best Kristian
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That looks good. In your log messages this one means that the browser cannot establish a WebSocket connection to your server during a study run: WebSocket connection to 'wss://***' failed What makes it a bit weird is that the WebSocket test shows a…
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Hi! I'm not sure I understand your experiment. First, when you are talking about 'components', are you talking about JATOS components or something else? Then I had a glimpse at your code and saw jatos.startStudyComponent. This function does not exis…
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It'd say it depends. So, if you run your experiment both times (online and local) on JATOS with the same code the big difference is the lag caused by the internet when you transfer data with the JATOS server. And here it depends on your experiment d…
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Hi! To get the browser into fullscreen mode you'd usually use Element.requestFullscreen(). Did you try this already? Best, Kristian
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Hi Craig, Do you have access to JATOS' administration page (only JATOS admins have)? It's under http://my-IP-or-domain/jatos/admin. Can you click the Tests button and check that all tests show an 'OK'. Especially the WebSocket one is important for t…
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Hi! Yes, it's still the same. Best K
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Hi! I'm a little bit at a loss: to which data file are you referring? Another thing: your JATOS version is pretty old and it would make sense to update the latest one. Best, Kristian
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Hi, I'd recommend to test your experiment online with a slow network to be sure that your increased load doesn't harm the speed. An easy way to do this is with your browser's developer tools / throttle network. Best, Kristian
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Have you tried the latest version of JATOS. There was a bug in a recent version removing line breaks and it was fixed. Best Kristian
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Hi Coralie, There can be many reasons why this is happening. But the first thing that comes into my mind is, that the participants just clicked on the link to see what this is about and then never actually worked on the study, closed the tab right a…
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Hi Kerwin, That shouldn't cause any trouble. Best, Kristian
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I have to admit that my knowledge about Windows is only rudimentary. I usually only use it to test JATOS :). At first loader.bat couldn't be run and I got a blue message saying the app had been blocked by my system administrator. You might be right…
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Hi! I just tried it and it worked. I used 3.8.4 bundled with Java. https://forum.cogsci.nl/uploads/964/VARTPA5WYISF.png What are your permission errors when you run the loader.bat? There shouldn't be any errors and JATOS does not need administrator …
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Hi Marko, I always wanted to do it for PsychoPy but never had the time. I'm sure it will work but might need some tweaking. I'm looking forward to your experience sharing. Best, Kristian
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Hi Marko, That can explain the behavior. But do you want to run your JATOS on port 9000? Usually port 80 is the port for web applications. And since you have an Apache running anyway you could map port 9000 to 80 there. Just an idea. Glad he found a…
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Hi Craig, Yes, your old links that you handed out to your participants (e.g. https://my.jatos.server/publix/1/start?batchId=1&personalSingleWorkerId=123) will still work; They will be translated internally by JATOS into the new format (e.g. http…
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Hi Marko, I'm a bit hesitant to give you more help here because it seems you are not familiar with a Linux terminal. You have to figure out how to bind a server running on localhost, port 9000, to an IP address or domain. JATOS can not do this for y…
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Ah wait, the error page comes from Apache. How did you configure Apache to forward all traffic to JATOS?
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Hi Marko, Everything you did looks fine to me. Are you sure about the URL? And are there any errors on jatos/logs/application.log? Best, Kristian
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Hi Jana, I doubt that this issue is a JATOS one. Your error msg "Application Error: TypeError: cannot use 'in' operator to search ..." puts it more in the JavaScript/browser side and there, since it only happens with OpenSesame components,…
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Hi Marko, Hmm, without sudo, just with "./loader.sh start" I get this error ... It's because you started JATOS once as root. JATOS created some files that now belongs to the root user. Either you 'chown' them back to your normal user or yo…
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Hi Marko, First, you don't need 'sudo' to start JATOS. It will just lead to weird file ownership problems. Then about JATOS not showing anything in the browser: What does the application.log in the logs folder say? Any errors or exceptions? Best, Kr…
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This bug is fixed in version v3.8.2 that is about to come out today :)
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Hi, Those error messages mean that the WebSocket for the batch channel could not be opened. JATOS uses WebSockets for some fast data exchange between the server and the browsers. Somehow those could not be established. But since there are no other …
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Hi GUO, The changes between the former version on Mindprobe, 3.7.4, and the current version 3.8.1 are mostly around the JATOS API. The JATOS API is mostly about study export/import, result fetching, and administration - it is not about study runs an…
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Hi GUO, It happened for two times that one participant (Worker ID: 291371) has finished tasks but there was no entry record on Jatos. We had tried to check on Jatos when the paticipant was doing the task, but Study Result State has no message of &qu…
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Thanks so far! Could you please send me the whole content of cookie JATOS_IDS_0? Best, K.
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The data is about 1800-1900 KB~ That might be the reason if you sent the data often. Sending data often can overload the network and when you participants network connection is weak it can lead to exactly this behavior ("transfering data" …
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Hi Moritz, I have seen this before. It's probably a bug somewhere in JATOS' cookie handling. But the problem for me is that I cannot reproduce it on my JATOSes. It seems to happen only with certain browsers. I try to pinpoint it in the source code t…