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sonyccd / roboclaw_ros

ros for roboclaw
BSD 2-Clause "Simplified" License
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Issue launching Roboclaw #24

Closed DariusStu closed 4 years ago

DariusStu commented 4 years ago

I'm having issues when trying to run the robolcaw node. I'm using this roboclaw_ros package and haven't changed any of the source code. I get the follwing error:

[FATAL] [1592845100.478977]: Could not connect to Roboclaw Traceback (most recent call last): File "/opt/ros/melodic/lib/python2.7/dist-packages/rospy/core.py", line 568, in signal_shutdown h() File "/home/nano/catkin_ws/src/roboclaw_ros/roboclaw_node/nodes/roboclaw_pyscript.py", line 318, in shutdown roboclaw.ForwardM1(self.address, 0) File "/home/nano/catkin_ws/src/roboclaw_ros/roboclaw_node/src/roboclaw_driver/roboclaw_driver.py", line 700, in ForwardM1 return _write1(address, Cmd.M1FORWARD, val) File "/home/nano/catkin_ws/src/roboclaw_ros/roboclaw_node/src/roboclaw_driver/roboclaw_driver.py", line 335, in _write1 _sendcommand(address, cmd) File "/home/nano/catkin_ws/src/roboclaw_ros/roboclaw_node/src/roboclaw_driver/roboclaw_driver.py", line 126, in _sendcommand port.write(chr(address)) NameError: global name 'port' is not defined [WARN] [1592845100.646772]: Problem getting roboclaw version Traceback (most recent call last): File "/home/nano/catkin_ws/src/roboclaw_ros/roboclaw_node/nodes/roboclaw_pyscript.py", line 332, in node = Node() File "/home/nano/catkin_ws/src/roboclaw_ros/roboclaw_node/nodes/roboclaw_pyscript.py", line 174, in init if not version[0]: UnboundLocalError: local variable 'version' referenced before assignment [roboclaw_node-8] process has died [pid 8459, exit code 1, cmd /home/nano/catkin_ws/src/roboclaw_ros/roboclaw_node/nodes/roboclaw_pyscript.py __name:=roboclaw_node __log:=/home/nano/.ros/log/8e2cd43a-b4a9-11ea-93ad-00044be65023/roboclaw_node-8.log]. log file: /home/nano/.ros/log/8e2cd43a-b4a9-11ea-93ad-00044be65023/roboclaw_node-8*.log

I am able to see the driver when I type the command usb-devices into my terminal window. usb_devices

Any input would be helpful in debugging this issue.

DariusStu commented 4 years ago

I ran project with root level privileges (sudo), and everything is working. The issue was ROS didn't have access rights to some usb ports.