# Getting YAML syntax error while adding plugins

**URL:** <https://meta.discourse.org/t/getting-yaml-syntax-error-while-adding-plugins/134105>\
**Category:** Self-hosting\
**Created:** [November 22, 2019, 2:59am UTC](https://meta.discourse.org/t/getting-yaml-syntax-error-while-adding-plugins/134105 "2019-11-22T02:59:26Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![pfaffman](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/pfaffman/32/120154_2.png) [@pfaffman](https://meta.discourse.org/u/pfaffman)\
**Post date:** [November 22, 2019, 3:05am UTC](https://meta.discourse.org/t/getting-yaml-syntax-error-while-adding-plugins/134105/2 "2019-11-22T03:05:53Z")

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> [@Nikhil\_Darji](#):
>
> not sure why it’s giving app  
> (): found a tab character that violate indentation

It’s probably because you have included a tab rather than spaces. And hence, it’s not indented correctly.

My recommendation is that you delete `app.yml`, run discourse-setup again.

Then, copy and paste the first plugin line and edit it by removing the github address and pasting in the new one.

You didn’t ask, but it is almost certainly a bad idea to install all of those plugins.

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