Gazebo Simulation: EntryListSrv empty response

[josephcoombe]

Using the develop branch:

When simulating with the HEBI Gazebo Plugin, if I call the EntryLIstSrv ROS Service from my code, I receive the following empty response:

entry_list: 
  size: 0
  entries: []

---

auto-starting new master
process[master]: started with pid [16271]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to 078503c8-74bc-11e8-95d0-3065ec753340
process[rosout-1]: started with pid [16284]
started core service [/rosout]
process[gazebo-2]: started with pid [16294]
/opt/ros/kinetic/lib/gazebo_ros/debug: 5: [: Linux: unexpected operator
process[gazebo_gui-3]: started with pid [16311]
process[spawn_urdf-4]: started with pid [16317]
process[hebiros_node-5]: started with pid [16318]
process[arm_position_controller-6]: started with pid [16319]
Broadcasting on:
  192.168.1.255
  172.20.20.255
[ INFO] [1529521156.929306692]: Using Gazebo
[ INFO] [1529521156.937988574]: Parameters:
[ INFO] [1529521156.938041650]: /hebiros/node_frequency=200
[ INFO] [1529521156.938078969]: /hebiros/action_frequency=200
[ INFO] [1529521156.938105151]: /hebiros/feedback_frequency=100
[ INFO] [1529521156.938124859]: /hebiros/command_lifetime=100
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from gzserver...done.
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
/home/joseph/tto-robotics/behavior_library_catkin_ws/catkin_ws/src/hebi_6_dof_arm_behavior/src/transformations.py:1912: UserWarning: failed to import module _transformations
  warnings.warn('failed to import module %s' % name)
[INFO] [1529521157.535255, 0.000000]:   Waiting for AddGroupFromURDFSrv at /hebiros/add_group_from_urdf ...
[INFO] [1529521157.536092, 0.000000]:   AddGroupFromURDFSrv AVAILABLE.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[New Thread 0x7fffcdf4e700 (LWP 16427)]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[New Thread 0x7fffc9c88700 (LWP 16429)]
[New Thread 0x7fffc9487700 (LWP 16430)]
[New Thread 0x7fffc8c86700 (LWP 16433)]
[New Thread 0x7fffc3fff700 (LWP 16434)]
[New Thread 0x7fffc37fe700 (LWP 16435)]
[New Thread 0x7fffc2ffd700 (LWP 16447)]
[New Thread 0x7fffc27fc700 (LWP 16448)]
[New Thread 0x7fffc1ffb700 (LWP 16449)]
[New Thread 0x7fffc17fa700 (LWP 16450)]
[New Thread 0x7fffc0ff9700 (LWP 16451)]
[New Thread 0x7fffabfff700 (LWP 16452)]
[New Thread 0x7fffa37fe700 (LWP 16453)]
[New Thread 0x7fffab7fe700 (LWP 16454)]
[New Thread 0x7fffaaffd700 (LWP 16455)]
[New Thread 0x7fffaa7fc700 (LWP 16456)]
[New Thread 0x7fffa9ffb700 (LWP 16457)]
[ INFO] [1529521160.635875534]: Finished loading Gazebo ROS API Plugin.
[ INFO] [1529521160.636475042]: waitForService: Service [/gazebo/set_physics_properties] has not been advertised, waiting...
[New Thread 0x7fffa97fa700 (LWP 16459)]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[New Thread 0x7fffa2f7d700 (LWP 16464)]
[New Thread 0x7fffa277c700 (LWP 16465)]
[New Thread 0x7fffa1f7b700 (LWP 16466)]
[New Thread 0x7fffa177a700 (LWP 16467)]
[New Thread 0x7fffa0f79700 (LWP 16468)]
[New Thread 0x7fff6bfff700 (LWP 16469)]
[New Thread 0x7fff6b7fe700 (LWP 16470)]
[New Thread 0x7fff6affd700 (LWP 16471)]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[New Thread 0x7fff6a7fc700 (LWP 16475)]
[New Thread 0x7fff69ffa700 (LWP 16477)]
[New Thread 0x7fff6a3fb700 (LWP 16476)]
[New Thread 0x7fff693f7700 (LWP 16480)]
[New Thread 0x7fff69bf9700 (LWP 16479)]
[New Thread 0x7fff697f8700 (LWP 16478)]
[New Thread 0x7fff68ff6700 (LWP 16482)]
[New Thread 0x7fff68bf5700 (LWP 16530)]
[New Thread 0x7fff33fff700 (LWP 16531)]
[New Thread 0x7fff337fe700 (LWP 16532)]
[New Thread 0x7fff32ffd700 (LWP 16533)]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[ INFO] [1529521161.959485039]: <robotNamespace> set to: //
[ INFO] [1529521161.959550234]: <topicName> set to: ///hebiros_gazebo_plugin/imu/ARM/Base
[ INFO] [1529521161.959574256]: <frameName> set to: ARM/Base/imu_link
[ INFO] [1529521161.959617644]: <updateRateHZ> set to: 10
[ INFO] [1529521161.959659487]: <gaussianNoise> set to: 0
[ INFO] [1529521161.959691672]: <xyzOffset> set to: 0.025 0 0.003
[ INFO] [1529521161.959733672]: <rpyOffset> set to: 0 -0 0
[ INFO] [1529521161.961909435]: <robotNamespace> set to: //
[ INFO] [1529521161.961934072]: <topicName> set to: ///hebiros_gazebo_plugin/imu/ARM/Shoulder
[ INFO] [1529521161.961946625]: <frameName> set to: ARM/Shoulder/imu_link
[ INFO] [1529521161.961966782]: <updateRateHZ> set to: 10
[ INFO] [1529521161.961982503]: <gaussianNoise> set to: 0
[ INFO] [1529521161.962001804]: <xyzOffset> set to: 0.025 0 0.003
[ INFO] [1529521161.962022723]: <rpyOffset> set to: 0 -0 0
[ INFO] [1529521161.968168300]: <robotNamespace> set to: //
[ INFO] [1529521161.968200704]: <topicName> set to: ///hebiros_gazebo_plugin/imu/ARM/Elbow
[ INFO] [1529521161.968220520]: <frameName> set to: ARM/Elbow/imu_link
[ INFO] [1529521161.968242820]: <updateRateHZ> set to: 10
[ INFO] [1529521161.968265552]: <gaussianNoise> set to: 0
[ INFO] [1529521161.968294201]: <xyzOffset> set to: 0.025 0 0.003
[ INFO] [1529521161.968318953]: <rpyOffset> set to: 0 -0 0
[ INFO] [1529521161.972434848]: <robotNamespace> set to: //
[ INFO] [1529521161.972466091]: <topicName> set to: ///hebiros_gazebo_plugin/imu/ARM/Wrist_1
[ INFO] [1529521161.972482041]: <frameName> set to: ARM/Wrist_1/imu_link
[ INFO] [1529521161.972503732]: <updateRateHZ> set to: 10
[ INFO] [1529521161.972522213]: <gaussianNoise> set to: 0
[ INFO] [1529521161.972550450]: <xyzOffset> set to: 0.025 0 0.003
[ INFO] [1529521161.972577889]: <rpyOffset> set to: 0 -0 0
[ INFO] [1529521161.976568899]: <robotNamespace> set to: //
[ INFO] [1529521161.976593501]: <topicName> set to: ///hebiros_gazebo_plugin/imu/ARM/Wrist_2
[ INFO] [1529521161.976604260]: <frameName> set to: ARM/Wrist_2/imu_link
[ INFO] [1529521161.976619898]: <updateRateHZ> set to: 10
[ INFO] [1529521161.976633127]: <gaussianNoise> set to: 0
[ INFO] [1529521161.976652752]: <xyzOffset> set to: 0.025 0 0.003
[ INFO] [1529521161.976674639]: <rpyOffset> set to: 0 -0 0
[ INFO] [1529521161.980714509]: <robotNamespace> set to: //
[ INFO] [1529521161.980740733]: <topicName> set to: ///hebiros_gazebo_plugin/imu/ARM/Wrist_3
[ INFO] [1529521161.980760510]: <frameName> set to: ARM/Wrist_3/imu_link
[ INFO] [1529521161.980779144]: <updateRateHZ> set to: 10
[ INFO] [1529521161.980796751]: <gaussianNoise> set to: 0
[ INFO] [1529521161.980818119]: <xyzOffset> set to: 0.025 0 0.003
[ INFO] [1529521161.980836626]: <rpyOffset> set to: 0 -0 0
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[ INFO] [1529521162.255231254]: Loaded hebiros gazebo plugin
[spawn_urdf-4] process has finished cleanly
log file: /home/joseph/.ros/log/078503c8-74bc-11e8-95d0-3065ec753340/spawn_urdf-4*.log
[ INFO] [1529521164.729764479, 0.008000000]: Loaded URDF from robot_description
[ INFO] [1529521164.729834821, 0.008000000]: Created group [hebi_6d_arm]:
[ INFO] [1529521164.729859072, 0.008000000]: /hebi_6d_arm/ARM/Base
[ INFO] [1529521164.729878974, 0.009000000]: /hebi_6d_arm/ARM/Elbow
[ INFO] [1529521164.729907874, 0.009000000]: /hebi_6d_arm/ARM/Shoulder
[ INFO] [1529521164.729922009, 0.009000000]: /hebi_6d_arm/ARM/Wrist_1
[ INFO] [1529521164.729939129, 0.009000000]: /hebi_6d_arm/ARM/Wrist_2
[ INFO] [1529521164.743760420, 0.023000000]: waitForService: Service [/gazebo/set_physics_properties] is now available.
[ INFO] [1529521164.813607950, 0.093000000]: Physics dynamic reconfigure ready.
[Thread 0x7fffa9ffb700 (LWP 16457) exited]
entry_list: 
  size: 0
  entries: []
...