Thanks for your great work!

I'm facing a problem when I run roslaunch pioneer_utils p3_world.launch

1. My python is 3.5
2. Tensorflow is 1.13.1
3. ROS Kinetic
4. When I run roslaunch pioneer_utils p3_world.launch in the terminal
   The error showed in terminal is:
   Traceback (most recent call last):
   File "/opt/ros/kinetic/share/xacro/xacro.py", line 55, in
   import xacro
   File "/opt/ros/kinetic/lib/python2.7/dist-packages/xacro/init.py", line 35, in
   import glob
   File "/usr/lib/python3.5/glob.py", line 4, in
   import re
   ImportError: No module named 're'
5. I think the version of python cause this problem. However, after I change to python2.7 + ensorflow is 1.13.1 + ROS Kinetic.
   5.1 The problem is:
   When I run roslaunch pioneer_utils p3_world.launch in the first terminal,
   some ROS INFO showed in the terminal:
   SpawnModel script started
   [ INFO] [1579333142.286742338]: Finished loading Gazebo ROS API Plugin.
   [ INFO] [1579333142.287142658]: waitForService: Service [/gazebo/set_physics_properties] has not been advertised, waiting...
   [ INFO] [1579333142.317293071]: Finished loading Gazebo ROS API Plugin.
   [ INFO] [1579333142.317689942]: waitForService: Service [/gazebo/set_physics_properties] has not been advertised, waiting...
   [INFO] [1579333142.326618, 0.000000]: Loading model XML from ros parameter
   [INFO] [1579333142.328966, 0.000000]: Waiting for service /gazebo/spawn_urdf_model
   [INFO] [1579333145.353341, 0.000000]: Calling service /gazebo/spawn_urdf_model

5.2 When I run python main.py, nothing happened. Nothing run in the Gazebo.

Can you give me some suggestions to solve this problem?
Thanks a lot!

Hi, I am a beginner in reinforcement learning. Thank you for sharing your paper, it has helped me a lot. I recently tried to port a model trained in gazebo to a real mobile bot. The robot has no problem subscribing and posting topics, but the robot is spinning in place, hesitating and unable to move forward. I wonder if this is caused by the difference between the simulation and the real environment, so I would like to ask you if you have encountered similar problems or if you know how to solve this?