Apparently there is an incompatibility with Bottleneck mod - critical error on monitoring completion

Error while running event MegaPackFactory::on_console_command (ID 74)
Unknown item name: bottleneck-stoplight
stack traceback:
[C]: in function 'set_signal'
MegaPackFactory/control.lua:444: in function 'End_monitor'
MegaPackFactory/control.lua:679: in function <MegaPackFactory/control.lua:657>

Thank you. I will release a new version soon.

Thank you. I will release a new version soon.

The factory creation went through without error, but when I tried to mine the factory, it crashed again.

Error while running event MegaPackFactory::on_player_mined_entity (ID 67)
Unknown item name: bottleneck-stoplight
stack traceback:
[C]: in function 'insert'
MegaPackFactory/control.lua:728: in function <MegaPackFactory/control.lua:713>

Thank you for pointing it out. I will add pcall to do the insertion safely.