# Fixing problems with rebuild app

**URL:** <https://meta.discourse.org/t/fixing-problems-with-rebuild-app/56589>\
**Category:** Support\
**Created:** [2017 年 1 月 30 日午後 3:00 UTC](https://meta.discourse.org/t/fixing-problems-with-rebuild-app/56589 "2017-01-30T15:00:52Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![JagWaugh](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jagwaugh/32/69335_2.png) [@JagWaugh](https://meta.discourse.org/u/JagWaugh)\
**Post date:** [2017 年 1 月 30 日午後 3:11 UTC](https://meta.discourse.org/t/fixing-problems-with-rebuild-app/56589/2 "2017-01-30T15:11:29Z")

</div>

What did you edit app.yml with?

It shouldn’t have any tabs in it.

If you find vi too difficult to use try a different editor, nano is pretty simple.

to install it:

sudo apt-get install nano

then, to edit app.yml

sudo nano /var/discourse/containers/app.yml

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