From Second Life Wiki
|| Character is near current goal.
|| Character has reached the goal and will stop or choose a new goal (if wandering).
|| Character cannot navigate from the current location - e.g., the character is off the navmesh or too high above it.
|| Goal is not on the navmesh and cannot be reached.
|| Goal is no longer reachable for some reason - e.g., an obstacle blocks the path.
|| Target (for llPursue or llEvade) can no longer be tracked - e.g., it left the region or is an avatar that is now more than about 30m outside the region.
|| There's no good place for the character to go - e.g., it is patrolling and all the patrol points are now unreachable.
|| Triggered when an llEvade character thinks it has hidden from its pursuer.
|| Triggered when an llEvade character switches from hiding to running
|| This is a fatal error reported to a character when there is no navmesh for the region. This usually indicates a server failure and users should file a bug report and include the time and region in which they received this message.
|| Triggered when a character enters a region with dynamic pathfinding disabled. Dynamic pathfinding can be toggled by estate managers via the 'dynamic_pathfinding' option in the Region Debug Console.
|| Triggered when a character failed to enter a parcel because it is not allowed to enter, e.g. because the parcel is already full or because object entry was disabled after the navmesh was baked.
|| Other failure.