Rviz examples not working on Ubuntu 18.04 + ROS Melodic

[kowac]

OS: Ubuntu 18.04
ROS: Melodic
Short error description: iiwa representation (e.g. by using "roslaunch iiwa_moveit moveit_planning_execution.launch" in Rviz not working, various topics not subscribed, Gazebo state not read properly.

Tried several example files but Rviz always fails to setup correctly. Tried both the master and the development branch after a clean install. Is this a common known issue in Melodic?

Warnings & Errors during the launch:

• [ WARN] [1555322408.268605456, 0.342000000]: Deprecated syntax, please prepend 'hardware_interface/' to 'PositionJointInterface' within the tag in joint 'iiwa_joint_1'.
  [ERROR] [1555322408.270399535, 0.342000000]: No p gain specified for pid. Namespace: /iiwa/gazebo_ros_control/pid_gains/iiwa_joint_1
  ...
• [ WARN] [1555322411.222563568, 2.712000000]: Kinematics solver doesn't support #attempts anymore, but only a timeout.
  Please remove the parameter '/iiwa/rviz_nboffis104_18543_3933730925375637416/manipulator/kinematics_solver_attempts' from your configuration.

Thanks in advance for any useful information.

[matthiashh]

The first warning is tackled in #84. The error in #161

About the second warning I am not sure if older versions of ROS that are still widely used would be compatible if it would be removed.

But apart from that I had issues with collapsing RViz representations as well and I solved them by putting

# RViz Workaround
# Otherwise the robot model will collapse
export LC_NUMERIC="en_US.UTF-8"

in my .bashrc. I am on melodic and it works for me.

[kowac]

Wow, this workaround indeed did the job. Can you also explain why this .bashrc addon has an impact on the collapsed robo in Rviz? I'm just curious as I can't draw any connection.

[matthiashh]

It doesn't fully apply for me, but this issue seems to be related:
moveit/moveit#1050

[kowac]

Thanks alot!