I got this error when I was changing the level on my TF2 server (Windows), occurred randomly twice.
I issued: changelevel koth_lakeside_final
Notice how the changelevel map is different to what is typed in, as well as the engine error:
Code:
Entity 1 (class 'player') reported ENTITY_CHANGE_NONE but 'm_nPlayerCond' changed.
Failed to find map koth_cahkaensgiedlee_vfeiln
CModelLoader::Map_IsValid: No such map 'maps/koth_cahkaensgiedlee_vfeiln.bsp'
Unable to change level!
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
uniqueid "-1" not found
L 11/20/2016 - 04:38:39: Engine error: Host_Error: SV_CreatePacketEntities: GetEntServerClass failed for ent 2.
I did see a thread about it from 2008, but it was patched up:
https://forums.alliedmods.net/showthread.php?t=76959
I am running metamod V 1.10.7 954
Sourcemod version 1.8.0.5949
Can provide plugins + extension lists if needed (But I am guessing this is not related to plugins)