Tried cartographer ros with sweep ros using the files in sweep.zip provided by Laser74. I am getting the following error.
..."]:33: attempt to index global 'SPARSE_POSE_GRAPH' (a nil value)ailed: status == 0 (2 vs. 0) [string "include "map_builder.lua"
Please help. Also please let me know the exact folders for the files provided by user Laser74 in sweep.zip. If I am doing something wrong somewhere, please point it out.