# Multisite (subdomain) deploy: Wordpress Installed?, PHP Fatal error: require() missing files

**URL:** https://discourse.roots.io/t/multisite-subdomain-deploy-wordpress-installed-php-fatal-error-require-missing-files/9426
**Category:** trellis
**Created:** 2017-04-20T02:15:36Z
**Posts:** 8
**Showing post:** 5 of 8

## Post 5 by @Sergio — 2017-04-20T20:35:52Z

Would [Best practices to update trellis](https://discourse.roots.io/t/best-practices-to-update-trellis/5386/6?u=sergio) be the way to update? What would be the recommended way to update a, semi :slight_smile:, existing setup?

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_[View the full topic](https://discourse.roots.io/t/multisite-subdomain-deploy-wordpress-installed-php-fatal-error-require-missing-files/9426)._