hello, I have to show the graph of simulation "car2car"(link of code source?https://github.com/cawka/ndnSIM-nom-rapid-car2car) but when I run the cmd ./run.py -s figure-4-data-propagation-vs-distance I have this error? _____________________________________________ .......... ./build/car-relay --run=5 --distance=155 ./build/car-relay --run=6 --distance=155 ./build/car-relay --run=7 --distance=155 ./build/car-relay --run=8 --distance=155 ./build/car-relay --run=9 --distance=155 ./build/car-relay --run=10 --distance=155 Warning message: closing unused connection 3 (results/figure-4-data-propagation-vs-distance/car-relay-in-cache.txt.bz2)? Warning message: `axis.ticks.margin` is deprecated. Please set `margin` property? of `axis.text` instead? Error in FUN(X[[i]], ...) :? ? Theme element 'text' has NULL property: margin, debug Calls: <Anonymous> ... element_render -> calc_element -> lapply -> FUN -> lapply -> FUN Execution halted --------------------------------------------------- [[elided Yahoo spam]] [[alternative HTML version deleted]]