Playing a pure Angel's game (no Bob's mods) with Angel Industries. I placed three of Angel's roboboxes (unpowered), one Angel's construction zone expander, then used a deconstruction blueprint to mark some trees for removal. It crashed before I could hook up power.
Crash entry:
6209.949 Error MainLoop.cpp:1207: Exception at tick 3247500: The mod Concreep (1.4.4) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event Concreep::on_nth_tick(60)
Concreep/control.lua:32: attempt to index field 'electric_energy_source_prototype' (a nil value)
stack traceback:
Concreep/control.lua:32: in function <Concreep/control.lua:18>
Factorio version: Factorio 0.18.36 (build 53200, linux64, alpha)
OS: Linux (Ubuntu 19.10)
Mod list:
0.336 Loading mod core 0.0.0 (data.lua)
0.407 Loading mod base 0.18.36 (data.lua)
0.611 Loading mod angelsrefining 0.11.15 (data.lua)
0.739 Loading mod Bottleneck 0.11.4 (data.lua)
0.844 Loading mod even-distribution 0.3.18 (data.lua)
0.946 Loading mod Explosive Excavation 1.1.7 (data.lua)
1.049 Loading mod flib 0.1.5 (data.lua)
1.154 Loading mod FNEI 0.3.4 (data.lua)
1.260 Loading mod GCKI 0.18.7 (data.lua)
1.365 Loading mod angelsaddons-oresilos 0.6.2 (data.lua)
1.469 Loading mod angelspetrochem 0.9.13 (data.lua)
1.612 Loading mod factoryplanner 0.18.39 (data.lua)
1.729 Loading mod LogisticTrainNetwork 1.13.9 (data.lua)
1.851 Loading mod angelssmelting 0.6.10 (data.lua)
1.975 Loading mod LtnManager 0.2.5 (data.lua)
2.098 Loading mod angelsbioprocessing 0.7.13 (data.lua)
2.240 Loading mod angelsindustries 0.4.5 (data.lua)
2.385 Loading mod base 0.18.36 (data-updates.lua)
2.536 Loading mod angelsrefining 0.11.15 (data-updates.lua)
2.684 Loading mod Squeak Through 1.8.0 (data-updates.lua)
2.812 Loading mod angelsaddons-oresilos 0.6.2 (data-updates.lua)
2.940 Loading mod angelspetrochem 0.9.13 (data-updates.lua)
3.082 Loading mod angelssmelting 0.6.10 (data-updates.lua)
3.227 Loading mod angelsbioprocessing 0.7.13 (data-updates.lua)
3.370 Loading mod angelsindustries 0.4.5 (data-updates.lua)
3.627 Loading mod angelsrefining 0.11.15 (data-final-fixes.lua)
3.760 Loading mod angelspetrochem 0.9.13 (data-final-fixes.lua)
3.906 Loading mod LogisticTrainNetwork 1.13.9 (data-final-fixes.lua)
4.040 Loading mod angelssmelting 0.6.10 (data-final-fixes.lua)
4.185 Loading mod angelsindustries 0.4.5 (data-final-fixes.lua)