Roslaunch not working

[hachbani2019]

Hi,

After struggling for days to get the update file to work, When I launch the roslaunch blam_example test_offline.launch command, I get the following error message :

[blam/blam_slam-2] process has died [pid 5670, exit code -11, cmd /home/hamza/project_blam/blam/internal/devel/lib/blam_slam/blam_slam_offline __name:=blam_slam __log:=/home/hamza/.ros/log/89a6fcd6-7c71-11e9-91d2-e4b97a2b6955/blam-blam_slam-2.log].
log file: /home/hamza/.ros/log/89a6fcd6-7c71-11e9-91d2-e4b97a2b6955/blam-blam_slam-2*.log

Is there any kind of tutorial/documentation about to to use BLAM ? I don't really understand a bunch of thing like for instance: What is the difference between the internal and external workspaces ? How to make the BLAM listen to a different topic (the one that publish my bag files data) and visualize the result with success ? What is the difference between the online and offline launch files ? I have a dozens of other questions about HowTo BLAM, but going to start with those one at first,

PS: In the test_offline I only modified the bag file name (line 13).

Thanks !

[BMannell]

Similar issue #42