Error while running event factory_solver::on_init()
factory_solver/manage/virtual.lua:341: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
factory_solver/manage/virtual.lua:341: in function 'create_resource_virtual'
factory_solver/manage/virtual.lua:47: in function 'create_virtuals'
factory_solver/control.lua:15: in function <factory_solver/control.lua:12>

Fixed in version 0.3.9.

Error while running event factory_solver::on_gui_click (ID 1)
factory_solver/manage/save.lua:236: assertion failed!
stack traceback:
[C]: in function 'assert'
factory_solver/manage/save.lua:236: in function 'get_fuel_preset'
factory_solver/manage/save.lua:679: in function 'new_production_line'
factory_solver/ui/production_line_adder.lua:177: in function 'handler'
flib/gui.lua:177: in function <flib/gui.lua:160>

PY

0.3.10

Fixed in version 0.3.11. However, without improvements in version 0.4.0, this mod is likely to be only slightly useful.