Appears util is replaced with something else. I dont know.
This happens to me since the 0.2.7 release. It must be a conflict with some other mod, since it works when no other mod is installed.
My mods:
add-loader_0.0.8.zip
advanced-logistics-system_0.4.0.zip
Aircraft-bobwarfare-grids_0.1.0.zip
Aircraft_1.2.0.zip
alien-biomes_0.1.7.zip
always-show-recipe-products_0.1.2.zip
angelsaddons-oldunkle_0.1.3.zip
angelsaddons-oresilos_0.2.2.zip
angelsaddons-pressuretanks_0.1.1.zip
angelsaddons-warehouses_0.1.3.zip
angelsbioprocessing_0.3.0.zip
angelscomponents_0.1.0.zip
angelsinfiniteores_0.5.4.zip
angelslogistics_0.1.1.zip
angelspetrochem_0.4.2.zip
angelsrefining_0.6.7.zip
angelssmelting_0.1.4.zip
angelstrigger-petrochem-showconverterrecipe_0.1.2.zip
angelstrigger-refining-enableproductivity_0.1.1.zip
AutoDeconstruct_0.1.6.zip
AutoTrash_1.0.1.zip
Battle-Train-MOD_0.1.3.zip
belt-reverser_0.0.2.zip
beltSorter_0.3.5.zip
blueprints-at-start_0.4.0.zip
bobassembly_0.14.0.zip
bobconfig_0.14.0
bobelectronics_0.14.0.zip
bobelectronics_gfxtweak_0.14.0.zip
bobenemies_0.14.0.zip
bobgreenhouse_0.14.0.zip
bobinserters_0.14.3.zip
boblibrary_0.14.3.zip
boblogistics_0.14.5.zip
bobmining_0.14.0.zip
bobmodules_0.14.2.zip
bobores_0.14.0.zip
bobplates_0.14.0.zip
bobpower_0.14.0.zip
bobrevamp_0.14.2.zip
bobtech_0.14.0.zip
bobvehicleequipment_0.14.2.zip
bobwarfare_0.14.2.zip
BottleneckLogistics_1.0.0.zip
Bottleneck_0.6.2.zip
bullet-trails_0.1.2.zip
Burner-Filter-Inserter_0.4.0.zip
BurnerLeech_0.1.7.zip
color-coding_1.1.1.zip
conman_0.14.4.zip
CopyAssemblerPipeDirection_0.1.0.zip
CpeBotRecaller_0.14.1.zip
crafting_combinator_0.4.2.zip
Crafting_Speed_Research_0.1.4.zip
creative-mode_0.2.8
D-Load-Storage_0.1.3.zip
data-raw-prototypes_0.1.3.zip
DeconstructNearbyLoot_1.1.0.zip
detached-gun-sounds_0.1.1.zip
Enhanced_Map_Colors_1.3.9.zip
EquipmentHotkeys_0.0.1.zip
EvoGUI_0.4.108.zip
Expanded_Robot_Tech_0.4.2.zip
ExplorationVehicle_2.0.0.zip
FARL_0.7.4.zip
filtered-deconstruction-planner_0.4.10.zip
fluid-barrel_1.1.2.zip
folk-fill_0.1.1.zip
folk-radar_0.1.0.zip
Foreman_1.1.5.zip
helmod_0.2.25.zip
InitialScan_0.1.6.zip
Inventory Sensor_1.1.7.zip
ItemCount_1.0.1.zip
KS_Power_0.1.8.zip
Laser_Beam_Turrets_0.1.8.zip
LateUpgrades_0.2.2.zip
Loader-Rotation-Fix_0.0.4.zip
LoaderSpeedPatch_0.1.0.zip
LogisticTrainNetwork_0.9.8.zip
long-reach-research_0.2.1.zip
longer-belts-redux_0.14.3.zip
mod-list.json
more-colours_0.0.1.zip
More-Locomotives_0.3.0.zip
more_circuit_symbols_1.0.0.zip
More_Floors_1.2.0.zip
Nanobots_1.4.7.zip
off-grid-effects_0.1.1.zip
PavementDriveAssist_2.0.3.zip
PCP_0.0.4.zip
pushbutton_0.0.4.zip
quickug_1.0.0.zip
RadarGridGuide_0.1.3.zip
radarplus for rso_0.0.3.zip
RadarTracker_0.3.5.zip
RailPowerSystem_0.0.4.zip
RailTankerAltTexture_1.1.0.zip
RailTanker_1.4.0.zip
Rampant_0.14.9.zip
ResearchRevolution_0.14.10.zip
reverse-factory_3.3.8.zip
robotarmy_0.2.3.zip
rso-mod_2.3.5.zip
ShinyBob_0.14.9.zip
ShuttleTrain_1.1.4.zip
signalstrings_0.14.2.zip
slowkey_0.1.0.zip
SmarterBotRecharge_1.0.1.zip
SpaceBook_1.0.26.zip
Squeak Through_1.1.6.zip
StickyNotes_2.1.3.zip
StonetoStone_1.0.0.zip
stringy-train-stop_0.14.1.zip
Surfaces_remake_0.0.8.zip
Tank Wagon_1.0.3.zip
tanks_for_bob_1.5.2.zip
textplates_0.1.16.zip
TheFatController_1.0.2.zip
TombStones_0.14.1.zip
TrainsCaller_0.2.0.zip
TrainsReader_0.2.2.zip
tree_collision_0.4.0.zip
unminable-logistic-robots_1.0.0.zip
upgrade-planner_1.2.14.zip
usefulbyproducts_0.1.3.zip
UsefulMapColors_1.1.5.zip
VehiclesEquipement_0.0.2.zip
VehicleSnap_1.14.21.zip
Vehicle_Radar_0.2.1.zip
VersepellesChunkMarkers_2.1.0.zip
WagonCapacityColor_1.0.4.zip
water-fix_0.1.1.zip
WaterBarrels_0.14.5.zip
what-is-it-used-for_1.1.5.zip
wirestripper_0.14.0.zip
YARM_0.7.108.zip
ZCS-Trash-Landfill_1.1.3.zip
Zoom_1.0.6.zip