Rimworld Err Site Label Detected New

If RimWorld crashes or shows an error mentioning “ERR_SITE_LABEL_DETECTED” (or a similarly worded site/label detection error), try the steps below — ordered from quickest to most thorough — to identify and fix the problem.

Now that survival is assured, you begin "developing" the site into a functioning home.

The "Hygiene" Systems:

Research Path:

In early 2024, a specific bug was discovered. The mod Vanilla Races Expanded - Saurid added a new "Nesting Ground" site. The mod author forgot to include a localization key for the discovery event, only for the map entry.

Users saw: Err site label detected new exactly when their colonist said, "Look, a nest..."

The fix? Manually editing the Languages/English/Keyed/Sites.xml file in the mod folder to add: <SiteDef.SauridNest.discovered>Discovered Nest</SiteDef.SauridNest.discovered> rimworld err site label detected new

If you find a specific mod causing this, check the Steam Workshop comments—often another user has posted the exact manual fix.

The primary cause of this error is almost always mod incompatibility or "mod rot."

Surprisingly, mods that modify interaction text—such as Interaction Bubbles, Speak Up, or Callouts—can trigger this error. These mods hook into the Pawn_Interactions tracker. When a caravan discovers a new site, the game tries to generate a "Discovery text line." If the mod fails to parse the site’s label, the error fires. If RimWorld crashes or shows an error mentioning

This feature automatically scans generated World Sites (enemy bases, quest locations, resource deposits) to detect uninitialized, placeholder, or mod-conflicting label strings. When a site label contains the raw string "new" (or a null/missing translation key), the system flags it as ERR to prevent broken quest text, UI glitches, or save file corruption.