ROS tf2 package

[Guennadi Liakhovetski]

And an update...

On Sun, 2 Dec 2018, Guennadi Liakhovetski wrote:

> Hi Jochen,
> 
> On Sun, 25 Nov 2018, Jochen Sprickerhof wrote:
> 
> > Hi Guennadi,
> > 
> > * Guennadi Liakhovetski <g.liakhovetski at gmx.de> [2018-11-24 11:23]:
> > > Traceback (most recent call last):
> > > rospkg.common.ResourceNotFound: tf2_ros
> > 
> > You are probably missing the libtf2-ros-dev package.
> > These dependencies are fixed in the new versions available in Debian testing.
> > 
> > > ROS path [0]=/opt/ros/kinetic/share/ros
> > > ROS path [1]=/home/pi/ros/catkin_ws/install/share
> > > ROS path [2]=/opt/ros/kinetic/share
> > 
> > This sounds strange. /opt/ros/kinetic/ is only used in the Open Robotics
> > packages available on packages.ros.org, not in the packages provided in
> > Debian. I'm not sure about the outcome if you mix both package sources and it
> > could likely lead to errors as the one above. So I would recommend to either
> > use ROS packages in Debian or the packages provided by Open Robotics.
> 
> You're right, in the beginning I didn't realise that one shouldn't mix the 
> two sources, then I read about it and tried to clean up and go with Debian 
> packages only, but apparently I didn't quite manage that :-/ Now I removed 
> all ROS packages and re-installed them completely from Debian only. And 
> still running "rosrun tf2_tools ..." produces the same error :-( I can now 
> run view_frames.py stand-alone, but so far it hasn't produced any 
> output... I'll try some tf2 demo to see, if the reason is in my wrong TF2 
> use or in the setup / in packages.

It has worked in the end. Just running "view_frames.py" It's just missing 
a couple of dependencies: graphviz and python-roslib

Thanks
Guennadi