aiubian
November 27, 2019, 2:05am
1
When i tried to run /opt/husarion/tools/rpi-linux/ros-core2-client /dev/ttyCORE2
, i got the following error
[INFO] [1574820128.513797]: ROS Serial Python Node
[INFO] [1574820128.528136]: Connecting to /dev/ttyCORE2 at 500000 baud
[INFO] [1574820130.701011]: Note: publish buffer size is 512 bytes
[INFO] [1574820130.702270]: Setup publisher on /battery [sensor_msgs/BatteryState]
[INFO] [1574820130.709184]: Setup publisher on /pose [geometry_msgs/PoseStamped]
[INFO] [1574820130.716263]: Setup publisher on /joint_states [sensor_msgs/JointState]
[ERROR] [1574820131.095345]: Cannot import package : tf
[ERROR] [1574820131.096446]: sys.path was ['/opt/husarion/tools/rpi-linux', '/home/husarion/ros_workspace/devel/lib/python2.7/dist-packages', '/opt/ros/kinetic/lib/python2.7/dist-packages', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-arm-linux-gnueabihf', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat', '/usr/lib/python2.7/dist-packages/gtk-2.0', '/usr/lib/python2.7/dist-packages/wx-3.0-gtk2']
[ERROR] [1574820131.097414]: Creation of publisher failed: 'NoneType' object has no attribute 'msg'
[INFO] [1574820131.105733]: Note: subscribe buffer size is 512 bytes
[INFO] [1574820131.106704]: Setup subscriber on /cmd_vel [geometry_msgs/Twist]
[INFO] [1574820131.117414]: Setup subscriber on /reset_odom [std_msgs/Bool]
[ERROR] [1574820131.121083]: Tried to publish before configured, topic id 128
Then i check, sys.path
in python and found this
[‘’, ‘/home/husarion/ros_workspace/devel/lib/python2.7/dist-packages’, ‘/opt/ros/kinetic/lib/python2.7/dist-packages’, ‘/usr/lib/python2.7’, ‘/usr/lib/python2.7/plat-arm-linux-gnueabihf’, ‘/usr/lib/python2.7/lib-tk’, ‘/usr/lib/python2.7/lib-old’, ‘/usr/lib/python2.7/lib-dynload’, ‘/usr/local/lib/python2.7/dist-packages’, ‘/usr/lib/python2.7/dist-packages’, ‘/usr/lib/python2.7/dist-packages/PILcompat’, ‘/usr/lib/python2.7/dist-packages/gtk-2.0’, ‘/usr/lib/python2.7/dist-packages/wx-3.0-gtk2’]
'/opt/husarion/tools/rpi-linux'
went missing from the system path. How to add it back?
Please help. Thanks for your time.
Hello aiubian,
Answering your question, to add value to path, you should do:
export PATH=_path_to_be_added_:$PATH
For adding /opt/husarion/tools/rpi-linux
it will be:
export PATH=/opt/husarion/tools/rpi-linux:$PATH
But this is not the issue, as the error is about missing ROS package.
Did you change anything in system configuration or firmware?
Regards,
Łukasz
aiubian
November 27, 2019, 7:32am
3
Hi,
I tried to install GitHub - yzqin/rgbdslam: A RGB-D SLAM package for astra camera in rosbot in order to create slam using camera. But this didn’t work. After that, settings got change. How to restore previous setting? is there any way to do that?
Thanks.
Hello aiubian,
It could be difficult to determine what changes were introduced during installation, but I would make sure that below packages are installed:
ros-kinetic-tf2-msgs ros-kinetic-tf2-geometry-msgs ros-kinetic-move-base-msgs ros-kinetic-nav-msgs ros-kinetic-sensor-msgs ros-kinetic-geometry-msgs ros-kinetic-rosbridge-msgs ros-kinetic-rqt-tf-tree ros-kinetic-tf ros-kinetic-tf-conversions ros-kinetic-tf2 ros-kinetic-tf2-eigen ros-kinetic-tf2-kdl ros-kinetic-tf2-py ros-kinetic-tf2-ros
Then remove rgbdslam
from your workspace, or create new workspace:
mkdir -p ~/new_workspace/src
cd ~/new_workspace/src
catkin_init_workspace
cd ~/new_workspace
catkin_make
Check if in .bashrc
at the end of file there are lines:
source /opt/ros/kinetic/setup.sh
source ~/new_workspace/devel/setup.sh
and there should be no entries pointing to other workspaces.
Try again to start:
/opt/husarion/tools/rpi-linux/ros-core2-client /dev/ttyCORE2
Regards,
Łukasz
aiubian
December 10, 2019, 2:46am
5
Hi,
I have created new workspace.
husarion@husarion:~$ echo $ROS_PACKAGE_PATH
/home/husarion/anik_workspace/src:/opt/ros/kinetic/share
but still giving the same error
husarion@husarion:~$ /opt/husarion/tools/rpi-linux/ros-core2-client /dev/ttyCORE2
[INFO] [1575945842.473013]: ROS Serial Python Node
[INFO] [1575945842.487338]: Connecting to /dev/ttyCORE2 at 500000 baud
[INFO] [1575945844.693603]: Note: publish buffer size is 512 bytes
[INFO] [1575945844.695087]: Setup publisher on /battery [sensor_msgs/BatteryState]
[INFO] [1575945844.703716]: Setup publisher on /pose [geometry_msgs/PoseStamped]
[INFO] [1575945844.711768]: Setup publisher on /joint_states [sensor_msgs/JointState]
[ERROR] [1575945845.219397]: Cannot import package : tf
[ERROR] [1575945845.221056]: sys.path was [‘/opt/husarion/tools/rpi-linux’, ‘/opt/ros/kinetic/lib/python2.7/dist-packages’, ‘/usr/lib/python2.7’, ‘/usr/lib/python2.7/plat-arm-linux-gnueabihf’, ‘/usr/lib/python2.7/lib-tk’, ‘/usr/lib/python2.7/lib-old’, ‘/usr/lib/python2.7/lib-dynload’, ‘/usr/local/lib/python2.7/dist-packages’, ‘/usr/lib/python2.7/dist-packages’, ‘/usr/lib/python2.7/dist-packages/PILcompat’, ‘/usr/lib/python2.7/dist-packages/gtk-2.0’, ‘/usr/lib/python2.7/dist-packages/wx-3.0-gtk2’]
[ERROR] [1575945845.222695]: Creation of publisher failed: ‘NoneType’ object has no attribute ‘msg’
[INFO] [1575945845.234875]: Note: subscribe buffer size is 512 bytes
[INFO] [1575945845.236294]: Setup subscriber on /cmd_vel [geometry_msgs/Twist]
[INFO] [1575945845.252721]: Setup subscriber on /reset_odom [std_msgs/Bool]
[ERROR] [1575945845.257964]: Tried to publish before configured, topic id 128
and sys.path
>>> sys.path
['', '/opt/ros/kinetic/lib/python2.7/dist-packages', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-arm-linux-gnueabihf', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat', '/usr/lib/python2.7/dist-packages/gtk-2.0', '/usr/lib/python2.7/dist-packages/wx-3.0-gtk2']
Please help. Thanks.
Could you provide also output of:
1.
env | grep PYTHON
python --version
Regards,
Łukasz
aiubian
December 11, 2019, 1:04am
7
hi,
here it is
husarion@husarion:~$ env | grep PYTHON
PYTHONPATH=/opt/ros/kinetic/lib/python2.7/dist-packages
and
husarion@husarion:~$ python --version
Python 2.7.12
Thanks.
We will also check if tf
is on list of installed packages.
First install pip
if it is not yet installed:
sudo apt-get install python-pip
Then list all python packages:
pip freeze
One of the lines should contain:
tf==_version_number_
Please provide here full output of pip freeze
command.
Regards,
Łukasz
aiubian
December 11, 2019, 9:10am
9
Hi,
Here it is
pip freeze
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/__init__.py:83: RequestsDependencyWarning: Old version of cryptography ([1, 2, 3]) may cause slowdown.
warnings.warn(warning, RequestsDependencyWarning)
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
actionlib==1.11.13
angles==1.9.11
attrs==15.2.0
autobahn==0.10.3
backports.ssl-match-hostname==3.4.0.2
camera-calibration-parsers==1.11.13
catkin==0.7.18
catkin-pkg==0.4.14
catkin-pkg-modules==0.4.14
catkin-tools==0.4.5
chardet==2.3.0
controller-manager==0.13.3
controller-manager-msgs==0.13.3
cryptography==1.2.3
cv-bridge==1.12.8
defusedxml==0.4.1
deluge==1.3.12
diagnostic-updater==1.9.3
docutils==0.12
dynamic-reconfigure==1.5.50
ecdsa==0.13
empy==3.3.2
enum34==1.1.2
futures==3.0.5
gazebo-ros==2.5.19
gencpp==0.6.0
geneus==2.2.6
genlisp==0.4.16
genmsg==0.5.11
gennodejs==2.0.1
genpy==0.6.7
idna==2.0
interactive-markers==1.11.4
ipaddress==1.0.16
laser-geometry==1.6.4
lz4==0.7.0
message-filters==1.12.14
mpi4py==1.3.1
msgpack-python==0.4.6
netifaces==0.10.4
nose==1.3.7
numpy==1.11.0
osrf-pycommon==0.1.8
PAM==0.4.2
paramiko==1.16.0
Pillow==3.1.2
pluginlib==1.11.3
pyasn1==0.1.9
pyasn1-modules==0.0.7
pycrypto==2.6.1
pycurl==7.43.0
pydot==1.0.29
pygame===1.9.1release
Pygments==2.1
pygobject==3.20.0
PyMySQL==0.7.2
pyOpenSSL==0.15.1
pyparsing==2.0.3
pyserial==3.0.1
Pyste==0.9.10
python-dateutil==2.4.2
python-libtorrent==1.0.7
python-qt-binding==0.3.4
python-snappy==0.5
pyxdg==0.25
PyYAML==3.11
qt-dotgraph==0.3.11
qt-gui==0.3.11
qt-gui-cpp==0.3.11
resource-retriever==1.12.5
roman==2.0.0
rosapi==0.11.3
rosbag==1.12.14
rosbridge-library==0.11.3
rosbridge-server==0.11.3
rosclean==1.14.6
rosdep==0.17.1
rosdistro==0.7.5
rosdistro-modules==0.7.5
rosgraph==1.12.14
roslaunch==1.12.14
roslib==1.14.6
roslz4==1.12.14
rosmaster==1.12.14
rosmsg==1.12.14
rosnode==1.12.14
rosparam==1.12.14
rospkg==1.2.0
rospkg-modules==1.2.0
rospy==1.12.14
rosserial-client==0.7.7
rosserial-python==0.7.7
rosservice==1.12.14
rostest==1.12.14
rostopic==1.12.14
rosunit==1.14.6
roswtf==1.12.14
rqt-graph==0.4.9
rqt-gui==0.5.0
rqt-gui-py==0.5.0
rviz==1.12.17
sensor-msgs==1.12.7
service-identity==16.0.0
six==1.10.0
smclib==1.8.3
tf==1.11.9
tf2-kdl==0.5.20
tf2-py==0.5.20
tf2-ros==0.5.20
topic-tools==1.12.14
tornado==4.2.1
trollius==2.0.1
Twisted==16.0.0
txaio==1.0.0
wxPython==3.0.2.0
wxPython-common==3.0.2.0
xacro==1.11.3
zope.interface==4.1.3
Hello aiubian,
None of the outputs you provided indicate errors which could prevent /opt/husarion/tools/rpi-linux/ros-core2-client
from running.
Problem is probably caused by some other factor, which would be difficult to track down.
In this case, the easiest solution will be to flash clean image .
Regards,
Łukasz
aiubian
December 16, 2019, 5:43am
11
Hi Łukasz,
I have reinstalled the image of ROSbot. Now, it is working fine.
Thanks for your time.