Build VSLAM occupancy grid with sensor data

[Ganishk]

I'm currently transmitting camera image and IMU data from my robot to the ROS, but don't know what is wrong in there, the rtabmap_launch file says for 5 seconds there is no data that was transmitted.

Topic type information:

sensor_msgs/msg/CompressedImage

/client_count:
std_msgs/msg/Int32

/connected_clients:
rosbridge_msgs/msg/ConnectedClients

/imu/data:
sensor_msgs/msg/Imu

/parameter_events:
rcl_interfaces/msg/ParameterEvent

/rosout:
rcl_interfaces/msg/Log

/tf:
tf2_msgs/msg/TFMessage

/tf_static:
tf2_msgs/msg/TFMessage

Please guide me.

[matlabbe]

says for 5 seconds there is no data that was transmitted.

There should be a list of topics in that warning message, please check with ros2 topic hz if the topic is published and if they all published at the same rate.