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Troubleshooting
There are a few common reasons why a scan may end instantly/without scanning platforms
- Badly mounted library: verify that you mounted your roms folder at
/romm/library - Incorrect permissions: the app needs to read the files and folders in your library, check their permissions with
ls -lh - Invalid folder structure: verify that your folder structure matches the one in the README
This is the same issue as the one above, and can be quickly solved by verifying your folder structure. RomM expects a library with a folder named roms in it, for example:
/server/media/library:/romm/library/server/media/games/roms:/romm/library/roms
When scanning the folders mounted in /library/roms, the scanner tries to match the folder name with the platform's slug in IGDB. If you notice that the scanner isn't detecting a platform, verify that the folder name matches the slug in the url of the platform in IGDB. For example, the Nintendo 64DD has the URL https://www.igdb.com/platforms/nintendo-64dd, so the folder should be named nintendo-64dd.
The background scan task times out after 4 hours, which can happen if you have a very large library. The easiest work around is to keep running scans every 4 hours, without checking the "Complete rescan" option.
When authentication is enabled, most endpoints will return a 403 Forbidden response if you're not authenticated, or if your sessions is in a broken state. The session key can be reset by clearing your cookies.
CSRF protection is also enabled, which helps to mitigates CSRF attacks (useful if your instance is public). If you encounter a Forbidden (403) CSRF verification failed error, simply reloading your browser should force it to fetch a fresh CSRF cookie.
This error is known to happen on Chrome, but could happen in other browsers; manually clear your cookies (specifically one called csrftoken) and hard reload your browser window (CMD+SHIFT+R on macOS, CTRL+F5 on Windows).
If you're running RomM behind a reverse-proxy (Caddy, NGINX, etc.), ensure that websockets are supported and enabled. This may vary depending on the reverse proxy solution being used. In the case of Nginx Proxy Manager, enable the "Websockets Support" toggle when editing the proxy host.
Verify that the database is mapped to a persistent storage volume in your docker compose or Unraid template.
"/path/to/database:/romm/database" # [Optional] Only needed if ROMM_DB_DRIVER=sqlite or not set
This is likely due to misconfigured environment variables; verify that CLIENT_ID and CLIENT_SECRET are set correctly, and that both match the values in IGDB.