# Discourse acceptance tests not working on local

**URL:** https://meta.discourse.org/t/discourse-acceptance-tests-not-working-on-local/255657
**Category:** Development
**Tags:** advertising
**Created:** [February 20, 2023, 7:23am UTC](https://meta.discourse.org/t/discourse-acceptance-tests-not-working-on-local/255657 "2023-02-20T07:23:01Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Yogesh\_g](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/yogesh_g/32/253636_2.png) [@Yogesh\_g](https://meta.discourse.org/u/Yogesh_g)
#### Post date: [February 20, 2023, 7:23am UTC](https://meta.discourse.org/t/discourse-acceptance-tests-not-working-on-local/255657/1 "2023-02-20T07:23:01Z")

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I have done some customization to the discourse adplugin. I have also written some unit test codes.  
But when I navigate to URL - [http://localhost:4200/tests/](http://localhost:4200/tests/)  
It shows me a blank page, with some 404 errors.

 ![Screenshot from 2023-02-20 12-50-32](https://global.discourse-cdn.com/meta/original/4X/7/a/8/7a89abb929b43cfe8ae56e224cab523962ab9c9c.png)

Please suggest how can i fix it.

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### Author: ![awesomerobot](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/awesomerobot/32/142900_2.png) [@awesomerobot](https://meta.discourse.org/u/awesomerobot)
#### Post date: [February 21, 2023, 2:24pm UTC](https://meta.discourse.org/t/discourse-acceptance-tests-not-working-on-local/255657/2 "2023-02-21T14:24:36Z")

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Have you tried running `yarn install` first?

> [@How to run Discourse core, plugin and theme QUnit test suites](https://meta.discourse.org/t/how-to-run-discourse-core-plugin-and-theme-qunit-test-suites/66857/1):
>
> Navigate to the root of the Ember application (`app/assets/javascripts/discourse`) in the Discourse repository and make sure you have run `yarn install` since you last pulled in upstream changes.

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### Author: ![Yogesh\_g](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/yogesh_g/32/253636_2.png) [@Yogesh\_g](https://meta.discourse.org/u/Yogesh_g)
#### Post date: [February 21, 2023, 2:38pm UTC](https://meta.discourse.org/t/discourse-acceptance-tests-not-working-on-local/255657/3 "2023-02-21T14:38:58Z")

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Yes, yes have tried running yarn install but it doesn’t work me. Is there any other documentation available related to the issue I am facing