# @observable and @bindable for same property ^2.0.0-beta.7 AUR0008

**URL:** <https://discourse.aurelia.io/t/observable-and-bindable-for-same-property-2-0-0-beta-7-aur0008/5196>\
**Category:** vNext\
**Created:** [July 18, 2023, 1:08am UTC](https://discourse.aurelia.io/t/observable-and-bindable-for-same-property-2-0-0-beta-7-aur0008/5196 "2023-07-18T01:08:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![cspainhour](https://avatars.discourse-cdn.com/v4/letter/c/c89c15/32.png) [@cspainhour](https://discourse.aurelia.io/u/cspainhour)\
**Post date:** [July 18, 2023, 1:08am UTC](https://discourse.aurelia.io/t/observable-and-bindable-for-same-property-2-0-0-beta-7-aur0008/5196/1 "2023-07-18T01:08:16Z")

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Hi,

I’m updating a project from ^2.0.0-alpha.41 to ^2.0.0-beta.7

When binding one of our components I get an AUR0008 error if I use @observable and @bindable for the same property.

Seems like we shouldn’t be doing this, just wanted to confirm.

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<div class="post-metadata">

**Author:** ![bigopon](https://yyz1.discourse-cdn.com/flex027/user_avatar/discourse.aurelia.io/bigopon/32/18_2.png) [@bigopon](https://discourse.aurelia.io/u/bigopon)\
**Post date:** [July 18, 2023, 10:49am UTC](https://discourse.aurelia.io/t/observable-and-bindable-for-same-property-2-0-0-beta-7-aur0008/5196/2 "2023-07-18T10:49:10Z")

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It can work, though it’s not recommended. You can see an example here [Aurelia bindable + observable on same property - StackBlitz](https://stackblitz.com/edit/au2-conventions-nsxld9?file=src%2Fel.ts,src%2Fel.html,src%2Fmy-app.html)

For the error you are facing, I’m not sure the reason. Maybe try upgrade the version one by one? Also ensure that you are not having duplicate packages (i.e all aurelia packages should be on the same version).