# דף ריק ושגיאה במנהל התמה

**URL:** <https://meta.discourse.org/t/blank-page-and-error-in-theme-admin/256101>\
**Category:** Bug\
**Created:** [23 בפברואר,‏ 2023,‏ 7:41pm UTC](https://meta.discourse.org/t/blank-page-and-error-in-theme-admin/256101 "2023-02-23T19:41:02Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![merefield](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/merefield/32/176214_2.png) [@merefield](https://meta.discourse.org/u/merefield)\
**Post date:** [23 בפברואר,‏ 2023,‏ 7:41pm UTC](https://meta.discourse.org/t/blank-page-and-error-in-theme-admin/256101/1 "2023-02-23T19:41:02Z")

</div>

I’ve managed to reproduce this on two entirely different machines and dev installs.

Steps to reproduce:

1.Start Discourse locally with: `EMBER_ENV=production bin/ember-cli -u` (though Ember ENV doesn’t seem to change things here)  
2. Ensure there are no third party plugins or Theme Components installed.  
3. Navigate to Admin → Customize → Theme  
4. Create New Theme Component  
5. Attempt to add some CSS  
6. This results in blank page and this error in the console:

`Error: ember-computed-decorators does not support using getters and setters`

 ![image](https://global.discourse-cdn.com/meta/original/4X/8/7/6/8766c6003d41f7c4ea15254cf908960599800dcb.png)

 ![image](https://global.discourse-cdn.com/meta/original/4X/c/7/d/c7d716e28c5001d10bce1d069107a027b97b561f.png)

[https://github.com/discourse/discourse/commit/a433b30650d125e6685fb13f679f613003f246aa](https://github.com/discourse/discourse/commit/a433b30650d125e6685fb13f679f613003f246aa)

@David if I check out just before this, everything is fine …

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