Building my map by gmapping i have just laser hokuyo

i used hokuyo_node and i run a node which pub odom but i can get my map
i have seen the tutorials of hector slam and gmapping i seen the map with bag already install but me i want to build my own map

Hi abdelkrim.

I think I understand your problem. You mean “CAN’T get my map”, am I right? Unfortunately I can’t help you until you will send me more information about your problem: error report, screen of console after runing .launch file or someting like that.