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Hi,

I figured put the solution to my problem. The thing is, after having an apt-get dist-upgrade my gazebo simulator was upgraded to gazebo 2.1 (previously it was gazebo 1.9 the stable version). It looks like the newer version is having some problems with hydro.

I had to uninstall the new version of gazebo i.e v2.1 by apt-get remove gazebo-current. After that I installed the earlier version i.e v1.9 http://gazebosim.org/wiki/1.9/install and then had to run these commands:

$ sudo apt-get install ros-hydro-turtlebot-simulator
$ source /opt/ros/hydro/setup.bash
$ roslaunch turtlebot_gazebo turtlebot_empty_world.launch

And it started publishing and subscribing again.

Cheers!

Hi,

I figured put out the solution to my problem. The thing is, after having an apt-get dist-upgrade my gazebo simulator was upgraded to gazebo 2.1 (previously it was gazebo 1.9 the stable version). It looks like the newer version is having some problems with hydro.

I had to uninstall the new version of gazebo i.e v2.1 by apt-get remove gazebo-current. After that I installed the earlier version i.e v1.9 http://gazebosim.org/wiki/1.9/install and then had to run these commands:

$ sudo apt-get install ros-hydro-turtlebot-simulator
$ source /opt/ros/hydro/setup.bash
$ roslaunch turtlebot_gazebo turtlebot_empty_world.launch

And it started publishing and subscribing again.

Cheers!