Salocin808's profile - activity

Hi! I found a some entries but none seem to help with my problem. I am currently following the instructions to install turtlebot on this site: http://wiki.ros.org/turtlebot/Tutoria... when running following command under point 2.2:

rosdep install --from-paths src -i -y

I get following stack trace:

nicolas@myworkstation:~/rocon$ rosdep install --from-paths src -i -y

ERROR: Rosdep experienced an error: Invalid package manifest "/opt/ros/indigo/share/catkin/package.xml": Error(s) in /opt/ros/indigo/share/catkin/package.xml:
- The manifest must not contain the following tags: depend, build_export_depend, buildtool_export_depend
Please go to the rosdep page [1] and file a bug report with the stack trace below.
[1] : http://www.ros.org/wiki/rosdep

rosdep version: 0.11.2

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/rosdep2/main.py", line 136, in rosdep_main
    exit_code = _rosdep_main(args)
  File "/usr/lib/python2.7/dist-packages/rosdep2/main.py", line 345, in _rosdep_main
    return _package_args_handler(command, parser, options, args)
  File "/usr/lib/python2.7/dist-packages/rosdep2/main.py", line 416, in _package_args_handler
    pkgs = find_catkin_packages_in(path, options.verbose)
  File "/usr/lib/python2.7/dist-packages/rosdep2/catkin_packages.py", line 33, in find_catkin_packages_in
    packages = find_packages(path)
  File "/usr/local/lib/python2.7/dist-packages/catkin_pkg/packages.py", line 87, in find_packages
    package = parse_package(os.path.join(basepath, path))
  File "/usr/local/lib/python2.7/dist-packages/catkin_pkg/package.py", line 315, in parse_package
    return parse_package_string(f.read(), filename)
  File "/usr/local/lib/python2.7/dist-packages/catkin_pkg/package.py", line 448, in parse_package_string
    raise InvalidPackage('Error(s) in %s:%s' % (filename, ''.join(['\n- %s' % e for e in errors])))
InvalidPackage: Invalid package manifest "/opt/ros/indigo/share/catkin/package.xml": Error(s) in /opt/ros/indigo/share/catkin/package.xml:
- The manifest must not contain the following tags: depend, build_export_depend, buildtool_export_depend

There must be a problem with my package.xml file.

It seems that the package version 2 might cause the error but I honestly don't know how to fix it. Does anyone have any ideas? Thanks in advance!

Hello!

When trying to run

roslaunch turtlebot_teleop keyboard_teleop.launch

I am getting the following error:

[keyboard_teleop.launch] is neither a launch file in package [turtlebot_teleop] nor is [turtlebot_teleop] a launch file name 
The traceback for the exception was written to the log file

the file exists though and the whole installation before worked fine! I don't know where to look. Any ideas?

Ok, the problem vanished the same way as it came. I did not do anything except putting an alias in the bashrc like this:

alias cat_make='cd ~/catkin_ws/ && catkin_make && source devel/setup.bash'

this is exactly what I did a million times already... opened up a new shell, ran cat_make and suddenly my package could be found again...

Strange.

Hi!

I am currently having a weird problem. My package cannot be found anymore even though it was working before. I put the package larah in the src folder and the workspace setup is correct. I also sourced the devel/setup.bash. roscd larah does not find the package either and rospack profile didn't help.

catkin_make seems to be working fine:

 Base path: /home/turtlebot/catkin_ws
Source space: /home/turtlebot/catkin_ws/src
Build space: /home/turtlebot/catkin_ws/build
Devel space: /home/turtlebot/catkin_ws/devel
Install space: /home/turtlebot/catkin_ws/install
 
Running command: "make cmake_check_build_system" in "/home/turtlebot/catkin_ws/build"
Running command: "make -j4 -l4" in "/home/turtlebot/catkin_ws/build"
 
[  5%] Built target openni_camera_gencfg
[ 10%] Built target fallen_person_wrapper
[ 73%] Built target openni_driver
[ 78%] Built target fallen_person_detector
[ 84%] Built target image_saver
[ 89%] [ 94%] Built target openni_node
Built target localization_node
[100%] Built target openni_nodelet 

But catkin_make src gives me following output:

Base path: /home/turtlebot/catkin_ws
Source space: /home/turtlebot/catkin_ws/src
Build space: /home/turtlebot/catkin_ws/build
Devel space: /home/turtlebot/catkin_ws/devel
Install space: /home/turtlebot/catkin_ws/install
 
Running command: "make cmake_check_build_system" in "/home/turtlebot/catkin_ws/build"
Running command: "make src -j4 -l4" in "/home/turtlebot/catkin_ws/build"
 
make: * No rule to make target `src'.  Stop.
Invoking "make src -j4 -l4" failed

also: ROS_PACKAGE_PATH gives the correct location of my package...

Any ideas??

Thank you!

Salocin

Ok thank you very much, it has been very helpful!

Hi!

I followed the instructions for installing the turtlebot and everything seemed to be working fine! However, when I try to start the connection with turtlebot I get following output:

...
started core service [/rosout]
process[robot_state_publisher-2]: started with pid [24237]
process[diagnostic_aggregator-3]: started with pid [24263]
process[mobile_base_nodelet_manager-4]: started with pid [24278]
process[mobile_base-5]: started with pid [24283]
process[cmd_vel_mux-6]: started with pid [24331]
process[bumper2pointcloud-7]: started with pid [24392]
process[turtlebot_laptop_battery-8]: started with pid [24463]
process[capability_server-9]: started with pid [24503]
process[app_manager-10]: started with pid [24506]
process[master-11]: started with pid [24513]
process[interactions-12]: started with pid [24516]
process[zeroconf/zeroconf-13]: started with pid [24544]
[ INFO] [1436789339.413865208]: Zeroconf: service successfully established [turtlebot][_ros-master._tcp][11311]
/opt/ros/indigo/lib/python2.7/dist-packages/bondpy/bondpy.py:114: SyntaxWarning: The publisher should be created with an explicit keyword argument 'queue_size'. Please see http://wiki.ros.org/rospy/Overview/Publishers%20and%20Subscribers for more information.
  self.pub = rospy.Publisher(self.topic, Status)
/opt/ros/indigo/lib/python2.7/dist-packages/bondpy/bondpy.py:114: SyntaxWarning: The publisher should be created with an explicit keyword argument 'queue_size'. Please see http://wiki.ros.org/rospy/Overview/Publishers%20and%20Subscribers for more information.
  self.pub = rospy.Publisher(self.topic, Status)

The difference with this output to the instructions is that after the line: process[master-11]: started with pid [24513] is, that I am not getting an ERROR: cannot launch node of type...

Does anyone have an idea what's wrong?

Thanks in advance!

Oh ok perfect. I have one more question: when opening the file, I get X Y Z RGB values for the points. But the RGB values are float. The representation looks like this: 1.8005456 -0.7766516 -0.0509897 4.8842062e-39 The fourth number should be RGB but how? Can I get values for the three channels?

salocin@salocin-laptop:~$ rosrun pcl_ros pcd_to_pointcloud ~/1438846855801553.pcd [ INFO] [1438848137.530670782]: Publishing data on topic /cloud_pcd with frame_id /base_link. [ INFO] [1438848137.542530309]: Loaded a point cloud with 1670 points (total size is 26720) and the following channels: x y

Thank you very much for your help! I am definately closer to where I want to be now. pcl_ros was a good tip. I can generate the .pcd files now but I want to have the coordinates with RGB values. So I figured, I could just convert it back with pcd_to_pointcloud. After these lines nothing's happening:

Hey!

I am currently following this tutorial on my turtlebot: http://wiki.ros.org/rtabmap_ros#Nodes

Therefore I started turtlebot and rviz like this:

$ roslaunch turtlebot_bringup minimal.launch
$ roslaunch rtabmap_ros demo_turtlebot_mapping.launch
$ roslaunch rtabmap_ros demo_turtlebot_rviz.launch

It all works fine but I don't know how to export the point cloud I created. My goal is to have a list of XYZ coordinates from all points. Anyone got any ideas?

EDIT:

I tried to run

rosservice call /rtabmap/get_map 1 0 0

but that does nothing... and when I click the get map option in RVIZ it is first trying to call get_map and then I get the error:

rtab/get_map is in the namespace though. Here is part of my rosservice list:

/rtabmap/backup
/rtabmap/cancel_goal
/rtabmap/get_grid_map
/rtabmap/get_map
/rtabmap/get_proj_map
/rtabmap/list_labels
/rtabmap/octomap_binary
/rtabmap/octomap_full
/rtabmap/pause
/rtabmap/publish_map
/rtabmap/reset
/rtabmap/resume
/rtabmap/rtabmap/get_loggers
/rtabmap/rtabmap/set_logger_level
/rtabmap/set_goal
/rtabmap/set_label
/rtabmap/set_mode_localization
/rtabmap/set_mode_mapping
/rtabmap/trigger_new_map
/rtabmap/update_parameters
/rviz/get_loggers
/rviz/reload_shaders
/rviz/set_logger_level
/turtlebot/invite
/turtlebot/list_rapps
/turtlebot/platform_info
/turtlebot/start_rapp
/turtlebot/stop_rapp
/turtlebot_laptop_battery/get_loggers
/turtlebot_laptop_battery/set_logger_level

The problem was that I didn't allow http in my security preferences of the web server ...

Hi!

I am currently using the LAMP stack as explained in the http://learn.turtlebot.com/2015/02/01... tutorial. The goal is to order a coffee (robot driving to specific location) through a chrome extension. I am running the turtlebot_bringup minimal.launch and loaded my map on the turtlebot laptop. I installed the LAMP correctly and entered the public_dns where I had to. Here is my traceback:

nicolas@nicolas-Precision-WorkStation-T3400:~/helloworld/turtlebot$ python coffee_bot.py 
[INFO] [WallTime: 1437468105.504769] wait for the action server to come up
[INFO] [WallTime: 1437468105.787535] Anyone need coffee?
[INFO] [WallTime: 1437468105.808969] Notebook's battery is now: 68%
[INFO] [WallTime: 1437468105.811882] Kobuki's battery is now: 99.0%
[INFO] [WallTime: 1437468129.914613] Notebook's battery is now: 69%
Traceback (most recent call last):
  File "coffee_bot.py", line 298, in <module>
    while(coffebot.deliver_coffee() and not rospy.is_shutdown()):
  File "coffee_bot.py", line 102, in deliver_coffee
    data = json.load(urllib2.urlopen(self.server_public_dns + "/var/www/html/turtlebot-server/coffee_queue.php?pop"))
  File "/usr/lib/python2.7/urllib2.py", line 127, in urlopen
    return _opener.open(url, data, timeout)
  File "/usr/lib/python2.7/urllib2.py", line 404, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 422, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 1214, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib/python2.7/urllib2.py", line 1184, in do_open
    raise URLError(err)
urllib2.URLError: <urlopen error timed out>

I changed the path from

self.server_public_dns + "/turtlebot-server/coffee_queue.php?pop

to:

self.server_public_dns + "/var/www/html/turtlebot-server/coffee_queue.php?pop

because when ssh into the server, this is where it is located. But either way it is not working. Can anyone help?

Thanks in advance! Cheers

well, after changing the value to 0.03 I never had problems.. where should I report the bug?