# Setup fails: Cannot allocate memory

**URL:** <https://meta.discourse.org/t/setup-fails-cannot-allocate-memory/235149>\
**Category:** Self-hosting\
**Created:** [August 4, 2022, 7:10pm UTC](https://meta.discourse.org/t/setup-fails-cannot-allocate-memory/235149 "2022-08-04T19:10:22Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![rsx](https://avatars.discourse-cdn.com/v4/letter/r/ce73a5/32.png) [@rsx](https://meta.discourse.org/u/rsx)\
**Post date:** [August 4, 2022, 7:28pm UTC](https://meta.discourse.org/t/setup-fails-cannot-allocate-memory/235149/4 "2022-08-04T19:28:26Z")

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If have changed `db_shared_buffers` to 512 MB and have rebuild the app:

> ./launcher rebuild app

That looks much better now.

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