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Hi, I am importing a 6 DOF arm using setupAssistant. When I load the urdf for the robotic arm, all the parts of the robotic arm are at the same plane. It shows a message "No root joint specified. Assuming fixed joint".

I searched in other threads and came across that there is some information to be added in the SRDF file. Since I have generated the URDF from Solidworks, so please tell where should I create a SRDF for the same and whether we have to load the URDF or the SRDF of the robot to fix this.

Here are the console logs:

[ INFO] [1400146129.617803918]: Loaded robot robot model.
[ INFO] [1400146129.618207340]: Setting Param Server with Robot Description
[ INFO] [1400146129.632349428]: Robot semantic model successfully loaded.
[ INFO] [1400146129.632505515]: Setting Param Server with Robot Semantic Description
[ INFO] [1400146129.664284638]: Loading robot model 'robot'...
[ INFO] [1400146129.664376122]: No root joint specified. Assuming fixed joint
[ INFO] [1400146130.118231108]: Stereo is NOT SUPPORTED
[ INFO] [1400146130.118454828]: OpenGl version: 3 (GLSL 1.3).
[ INFO] [1400146130.830133313]: Loading robot model 'robot'...
[ INFO] [1400146130.830429200]: No root joint specified. Assuming fixed joint
[ INFO] [1400146131.398639691]: Loading robot model 'robot'...
[ INFO] [1400146131.398745909]: No root joint specified. Assuming fixed joint
[ INFO] [1400146131.688112326]: Loading Setup Assistant Complete

Originally posted by rvijay on ROS Answers with karma: 41 on 2014-05-14

Post score: 3


Original comments

Comment by clark_txh on 2016-09-30:
hello I get the same proplem, can you tell me ,how sovle it.

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1 Answer 1

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Strange as it may sound, when running in debug mode using gdb worked around the issue for a person I was helping.

$ roslaunch moveit_setup_assistant setup_assistant.launch debug:=true

Originally posted by 130s with karma: 10937 on 2015-04-23

This answer was ACCEPTED on the original site

Post score: 0


Original comments

Comment by gvdhoorn on 2015-04-24:
You did not get the message No root joint .. when running the Setup Assistant in gdb?

Comment by 130s on 2015-04-24:
Not that I know of (this was happening on someone else' computer I was helping).

Comment by gvdhoorn on 2015-04-24:
That sounds rather strange: the message essentially tells you that there is no joint connecting base_link to the 'world' (however that is defined). Running in gdb or not should not affect this.

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