[ros-users] TimeNotInitializedException while creating tf.TransformListener in python
Ken Conley
kwc at willowgarage.com
Wed Jun 9 06:02:29 UTC 2010
The changes will be pushed closer to the release of cturtle. It is difficult
for us to maintain both cturtle and latest during this period, especially
given the rapid rate of patches and fixes that will likely occur. cturtle
and latest have small differences that would require doing separate testing
to do simultaneous releases.
It's also the case that cturtle represents a more stable version of latest,
with 99% of the same functionality. It's pretty much a win-win to switch. We
generally don't recommend that any institution track latest, as it only
exists to aid active ROS development. APIs are in flux, features get pulled,
etc...
Hope this clears up any confusion,
Ken
On Tue, Jun 8, 2010 at 10:57 PM, Antons Rebguns <arebgun at gmail.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Ken,
>
> When are you planning to push changes back into latest? After cturtle is
> released?
>
> Anton
>
> On 06/08/2010 10:53 PM, Ken Conley wrote:
> > The problem will be fixed in the most recent release of geometry, *but*
> > you need to switch from latest to cturtle. We are switching over our
> > development to cturtle, which we have just branched from latest in order
> > to stabilize development. The official announcement for testing our
> > alpha release of cturtle will likely come tomorrow, but you can access
> > it (including debs) by substituting 'cturtle' for 'boxturtle' in any of
> > the installation instructions. This alpha version of cturtle comes with
> > the same warnings and caveats we apply to latest: use at your own risk,
> > as problems like the one you reported are likely to exist.
> >
> > - Ken
> >
> > On Tue, Jun 8, 2010 at 10:45 PM, Antons Rebguns <arebgun at gmail.com
> > <mailto:arebgun at gmail.com>> wrote:
> >
> > Hi folks,
> >
> > I am running latest ROS and have a strange problem that shows up
> > when running this little snippet of code:
> >
> > #! /usr/bin/env python
> >
> > import roslib; roslib.load_manifest('wubble_actions')
> > import rospy
> > import tf
> >
> > if __name__ == '__main__':
> > rospy.init_node('tf_test', anonymous=True)
> > tf = tf.TransformListener()
> > rospy.spin()
> >
> > After running this node I get the following error:
> >
> > terminate called after throwing an instance of
> > 'ros::TimeNotInitializedException'
> > what(): Cannot use ros::Time before calling ros::init
> > [test_tf-11] process has died [pid 15907, exit code -6].
> > log files:
> > /home/anton/.ros/log/6e6c07b8-7389-11df-9736-0026b0e3798c/test_tf-11*.log
> >
> > Does anybody have an idea what might be wrong here?
> >
> > Thanks,
> > Anton
> _______________________________________________
> ros-users mailing list
> ros-users at code.ros.org <mailto:ros-users at code.ros.org>
> https://code.ros.org/mailman/listinfo/ros-users
>
> > _______________________________________________
> > ros-users mailing list
> > ros-users at code.ros.org
> > https://code.ros.org/mailman/listinfo/ros-users
>
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.10 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>
> iEYEARECAAYFAkwPLSwACgkQ1B2I24nMQmpshgCfdFOuLwqrS1XajkZmGoyQwBso
> ECEAoI2lR0bTsjhLbSeHbyEA/U9xvHYl
> =rMQX
> -----END PGP SIGNATURE-----
> _______________________________________________
> ros-users mailing list
> ros-users at code.ros.org
> https://code.ros.org/mailman/listinfo/ros-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ros.org/pipermail/ros-users/attachments/20100608/678ba6e8/attachment-0003.html>
More information about the ros-users
mailing list