Placing a spawn in a simulation causes a popup :

Warning! You are to settle a room outside the Novice Area! The Novice Area sector was created in order to protect novice players from fights with more skilled ones in the initial stages of the game. By settling outside of it, you risk becoming an easy prey in the case you are not familiar with the game yet.

Are you sure you want to found your colony here?

I observe this every 12 hours.

Survival mode logs following on every tick:
n@blob:https://screeps.com/4c124e01-ec7c-4ad3-b412-b89561716dbb:5:29164
[41][33]EventHandlerNonNull*[33][33]<@blob:https://screeps.com/4c124e01-ec7c-4ad3-b412-b89561716dbb:5:4846
e@blob:https://screeps.com/4c124e01-ec7c-4ad3-b412-b89561716dbb:2:246
e/<@blob:https://screeps.com/4c124e01-ec7c-4ad3-b412-b89561716dbb:2:305
[110]EventHandlerNonNull*[110]<@blob:https://screeps.com/4c124e01-ec7c-4ad3-b412-b89561716dbb:10:21723
e@blob:https://screeps.com/4c124e01-ec7c-4ad3-b412-b89561716dbb:2:246
a@blob:https://screeps.com/4c124e01-ec7c-4ad3-b412-b89561716dbb:2:421
@blob:https://screeps.com/4c124e01-ec7c-4ad3-b412-b89561716dbb:2:1

An error "redeclaration of var _" appears in console when I try to

const _ = require('lodash');

in simulation. What am I doing wrong? Is simulation API different from the online one or is lodash imported by default on both?