Version 0.18.30

The mod Robot Army (0.4.4) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event robotarmy::on_tick (ID 0)
on_entity_spawned (ID 132) (132) can't be raised through script.
stack traceback:
robotarmy/robolib/eventhandlers.lua:279: in function 'processDroidAssemblers'
robotarmy/robolib/eventhandlers.lua:352: in function 'tickForces'
robotarmy/robolib/eventhandlers.lua:452: in function <robotarmy/robolib/eventhandlers.lua:449>
stack traceback:
[C]: in function 'raise_event'
robotarmy/robolib/eventhandlers.lua:279: in function 'processDroidAssemblers'
robotarmy/robolib/eventhandlers.lua:352: in function 'tickForces'
robotarmy/robolib/eventhandlers.lua:452: in function <robotarmy/robolib/eventhandlers.lua:449>

wow.. this is a major change to the game scripting. v18.27 came out over a week ago, it's probably broken since then. This may take a while to fix, even if I had time to fix it right now... Thanks for the report, you may need to down-grade your factorio version to keep using Robot Army. Downgrade to v18.26

I have a patched version 0.4.5 released now which deals with this.