What is UTM=false??

[hogeol]

In my case, I play .bag file, but if I set UTM to local=true, the map is not existing.. otherwise, if I set UTM to local =false, the localization map is existing

[koide3]

It is a flag to convert a map saved in the UTM coordinate. If you set utm==false when the map is saved, the map is saved in the local coordinate, and you should set convert_utm_to_local==false.