TB2+Astra: No matching device found

edit

Hello everybody!

my name is Antonino and I work as a teacher in a Secondary School in Spain and I want to teach to my students how to use ROS.

my students using ROS

I have a Turtlebot 3 burger and we use it without problem but now we are trying to do the same things with a Turtlebot 2 and we are having some problems.

The Turtlebot 2 has an Astra camera and I have no problem when we do this.

roslaunch astra_launch astra.launch

rosrun rviz rviz

But, when we try to create a map we get this error:

No matching device found.... waiting for devices. Reason: std::__cxx11::string astra_wrapper::AstraDriver::resolveDeviceURI(const string&) @ /tmp/binarydeb/ros-kinetic-astra-camera-0.2.2/src/astra_driver.cpp @ 741 : Invalid device number 1, there are 0 devices connected.
[ INFO] [1557657651.767909049]: Using plugin "static_layer"
[ INFO] [1557657651.786272922]: Requesting the map...
[ INFO] [1557657654.437115202]: No matching device found.... waiting for devices. Reason: std::__cxx11::string astra_wrapper::AstraDriver::resolveDeviceURI(const string&) @ /tmp/binarydeb/ros-kinetic-astra-camera-0.2.2/src/astra_driver.cpp @ 741 : Invalid device number 1, there are 0 devices connected.

I execute this commands:

roslaunch turtlebot_bringup minimal.launch

roslaunch turtlebot_navigation gmapping_demo.launch

We have added export TURTLEBOT_3D_SENSOR=astra in the .bashrc file.

Could you help me?

Thank you in advance!

Regards,

Antonino