# 404 error, js file present on gitlab but not found on pavlovia.org

**URL:** <https://discourse.psychopy.org/t/404-error-js-file-present-on-gitlab-but-not-found-on-pavlovia-org/39269>\
**Category:** Online experiments\
**Created:** [March 22, 2024, 12:59pm UTC](https://discourse.psychopy.org/t/404-error-js-file-present-on-gitlab-but-not-found-on-pavlovia-org/39269 "2024-03-22T12:59:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Andrey\_Chetverikov](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/andrey_chetverikov/32/40064_2.png) [@Andrey\_Chetverikov](https://discourse.psychopy.org/u/Andrey_Chetverikov)\
**Post date:** [March 22, 2024, 12:59pm UTC](https://discourse.psychopy.org/t/404-error-js-file-present-on-gitlab-but-not-found-on-pavlovia-org/39269/1 "2024-03-22T12:59:55Z")

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URL of experiment: [Value\_uncertainty\_BART [PsychoPy]](https://run.pavlovia.org/andche/value_uncertainty_bart/)

Description of the problem: I have troubles running my experiment online. The synchronization seems to go well, and the local version works fine. But whenever I try to run it through pavlovia, I get error 404 because [https://run.pavlovia.org/andche/value\_uncertainty\_bart/Value\_uncertainty\_BART.js](https://run.pavlovia.org/andche/value_uncertainty_bart/Value_uncertainty_BART.js) is not found. I tried re-syncing and deleting all except psyexp file, doesn’t help.

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**Author:** ![wakecarter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/wakecarter/32/5753_2.png) [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Post date:** [March 22, 2024, 1:38pm UTC](https://discourse.psychopy.org/t/404-error-js-file-present-on-gitlab-but-not-found-on-pavlovia-org/39269/2 "2024-03-22T13:38:37Z")

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Hi,

Please check that the name of your experiment in Experiment Settings matches the name of your psyexp file. This is a 2023 bug which should be fixe din the next release.

Best wishes,

Wakefield

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<div class="post-metadata">

**Author:** ![Andrey\_Chetverikov](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/andrey_chetverikov/32/40064_2.png) [@Andrey\_Chetverikov](https://discourse.psychopy.org/u/Andrey_Chetverikov)\
**Post date:** [March 22, 2024, 2:16pm UTC](https://discourse.psychopy.org/t/404-error-js-file-present-on-gitlab-but-not-found-on-pavlovia-org/39269/3 "2024-03-22T14:16:10Z")

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Thanks, it helped!