Fail on the second step at Move Group Python Interface tutorial

[shalauko]

Description

Move Group Python Interface fail. Can't go ahead in this tutorial after the first step.

Your environment

• ROS Distro: Kinetic
• OS Version: Ubuntu 16.04

Steps to reproduce

I tried to follow Move Group Python Interface tutorial . I ran demo.launch and next move_group_python_interface_tutorial.py as it is written in tutorial. After first Enter I see expected result, but at the second step I see:

Traceback (most recent call last): File "/home/stanislaw/ROS/ws_moveit/src/moveit_tutorials/doc/move_group_python_interface/scripts/move_group_python_interface_tutorial.py", line 510, in <module> main() File "/home/stanislaw/ROS/ws_moveit/src/moveit_tutorials/doc/move_group_python_interface/scripts/move_group_python_interface_tutorial.py", line 464, in main tutorial.go_to_joint_state() File "/home/stanislaw/ROS/ws_moveit/src/moveit_tutorials/doc/move_group_python_interface/scripts/move_group_python_interface_tutorial.py", line 174, in go_to_joint_state move_group.go(joint_goal, wait=True) File "/home/stanislaw/ROS/ws_moveit/src/moveit/moveit_commander/src/moveit_commander/move_group.py", line 498, in go self.set_joint_value_target(self.get_remembered_joint_values()[joints]) TypeError: unhashable type: 'list'
and process fail.

Worth to notice:

1. When I run the rosrun ... command, appears
   Failed to import pyassimp, see https://github.com/ros-planning/moveit/issues/86 for more info
   I have checked that issue and after checked my pyassimp version and it is 4.1.4 - theoretically shoud work properly.
   I tried to import pyassimp in pure python2 and it faild, but when I imported it to python3 on my machine it was working.
   I tried to run move_group_python_interface_tutorial.py with command python ....py and python3 ....py. In both cases it faild.

2. In the first step of .py script I get a warning:

[ WARN] [1553437979.464594324]: Kinematics solver doesn't support #attempts anymore, but only a timeout.
Please remove the parameter '/robot_description_kinematics/panda_arm/kinematics_solver_attempts' from your configuration.

Where could be a problem?

[welcome]

Thanks for reporting an issue. We will have a look asap. If you can think of a fix, please consider providing it as a pull request.

[ashBabu]

same error here. Any updates please.
This was working properly for me until I pulled the latest version of moveit. Is going back to a previous version is the only solution?

[rhaschke]

@stanislauhalauko I'm confused. Can you check your MoveIt version once again?
The warning "kinematics solver doesn't support #attempts" is due to #1288, which was only merged into the melodic/master branch, but not into kinetic.

[ashBabu]

In catkin_ws\src\moveit git describe --tags gives 1.0.1-28-g7793148.
I followed https://moveit.ros.org/install/source/ to build moveit from source. go_to_joint_state() doesnt work and results in the error TypeError: unhashable type: 'list'

[shalauko]

@rhaschke I have few packages connected to MoveIt. Version of which one I should check?

E.g. version of moveit_core is 0.9.15

[rhaschke]

This is actually the master branch. On Bionic I wasn't able to reproduce your issue using the master branch.
I will try to reproduce it on Xenial tomorrow, but I cannot promise I will find time for it...

[rhaschke]

How did you figure the version of e.g. moveit_core? The source folder is the master branch, i.e. > 1.0.1.

[rhaschke]

I was able to reproduce on Bionic and will prepare a fix.

[rhaschke]

Issue fixed in MoveIt (moveit/moveit#1459).

[shalauko]

@rhaschke Thank you a lot! Now it works.
Btw. I've checked version of moveit_core by the command rosversion moveit_core