rtabmap_ros, navigation simulation on prerecorded map, pathplanning

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Thank you for your fast reply! I get following error while trying this: error while loading shared libraries: librtabmap_core.so.0.19:cannot open shared object file: No such file or directory For testing I used the standart rtabmap database path ~/.ros and the rtabmap.db file.

It looks like the linker cannot find librtabmap_core.so.0.19. How rtabmap was installed? From binaries or by source? If from source, make sure to update both rtabmap and rtabmap_ros.

I reinstalled rtabmap and rtabmap_ros from source. After entering:

rosrun rtabmap_ros rtabmap --Mem/IncrementMemory false /home/kinetic/StereoSLAM:=map

I get :

[ WARN] [1590512365.529461942]: /rtabmap: Did not receive data since 5 seconds! Make sure the input topics are published ("$ rostopic hz my_topic") and the timestamps in their header are set. If topics are coming from different computers, make sure the clocks of the computers are synchronized ("ntpdate"). If topics are not published at the same rate, you could increase "queue_size" parameter (current=10).
/rtabmap subscribed to (approx sync):
   /odom,
   /rgb/image,
   /depth/image,
   /rgb/camera_info

I thougth this could be normal since I work with an prerecorded map, but

rostopic echo \grid_map

Returns nothing

/home/kinetic/StereoSLAM:=map seems wrong to me. In my example, it is _database_path:=map.db

Sry, I thougth _database_path should be my Path to the map I created and map.db the name of the map itself. It gave me errors about the . operator as I tried it with .db . I now tried with _database_path:=map.db and it gives me the same Warning and no \grid_map. I also tried _database_path:=name_of_my_map.db and I get:

[ERROR] (time&date) VWDictionary.cpp:675::addWordRef() Not found word (Incremantally incresing number) (dict size=0)

Kinda off-topic, but I really appreciate your enormous engagement in all rtabmap related question threads across multiple platforms. Thank you! It really helps alot.

map.db should be the absolute path of your database. By default, rtabmap saves the map in ~/.ros/rtabmap.db, so in that case _database_path:=~/.ros/rtabmap.db. Make sure the map file you are using exists and have a map inside. You can open the database with rtabmap-databaseViewer, open Window->Graph View and see if a grid map is shown under the blue trajectory.

... and you're welcome!

Thank you. I followed the appropriate syntax now, but still run into the same Error

[ERROR] (time&date) VWDictionary.cpp:675::addWordRef() Not found word (Incremantally incresing number) (dict size=0)

I checked the database with the database viewer and it looks ok as far as i can tell.

I changed to the PC where I originally captured the map and now get the same Errors regarding not published topics. I captured the map in a stereo configuration and with a zedm camera and I couldn't find any Method of how to change the subscribed topics from in case I call it like:

rosrun rtabmap_ros rtabmap