roslaunch ur3_gazebo ur3_cubes.launch grasp_plugin:=1 about ur3 HOT 6 CLOSED

Hi @huaji98 ,

Are you using the Docker environment or did you install the repository manually?

If it's the latter, make sure that the docker package robotiq is in your ros_ws/src directory. It should have been installed in this step rosinstall ~/ros_ws/src /opt/ros/kinetic src/ur3/dependencies.rosinstall

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Thank you for your reply, I checked the robotiq package, but no gripper_85_controller.yaml there

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@huaji98 Hi,

Yeah, you are right, sorry about that, I haven't used the kinetic branch (master) in a while, so I forgot to update it.

If you update the robotiq repository it should work.

Let me know if you have any other problem

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rosrun ur_control sim_controller_examples.py -m
Traceback (most recent call last):
File "/home/user/ros_ws/src/ur3/ur_control/scripts/sim_controller_examples.py", line 4, in
from ur_control.arm import Arm
File "/home/user/ros_ws/src/ur3/ur_control/src/ur_control/arm.py", line 22, in
from ur_pykdl import ur_kinematics
File "/home/user/ros_ws/devel/lib/python2.7/dist-packages/ur_pykdl/init.py", line 34, in
exec(__fh.read())
File "", line 29, in
File "/home/user/ros_ws/src/ur3/ur_pykdl/src/ur_pykdl/ur_pykdl.py", line 38, in
from ur_kdl.kdl_parser import kdl_tree_from_urdf_model
File "/home/user/ros_ws/src/ur3/ur_pykdl/src/ur_kdl/init.py", line 1, in
from .kdl_parser import (
File "/home/user/ros_ws/src/ur3/ur_pykdl/src/ur_kdl/kdl_parser.py", line 146
print("URDF non-fixed joints: %d;" % num_non_fixed_joints, end=' ')
^
SyntaxError: invalid syntax

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Umm the problem is that the Kinematics library ur_pykdl does not support Python 2 anymore.

I strongly recommend you to use python 3. You can use the Dockerfile as an example to either set up your local machine or use Docker directly.

Sorry!

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Thank you!!!

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