Has anyone successfully managed to run `cuda-memcheck` on a nodelet project?
I have:
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Running cuda-memcheck on nodelets
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roslaunch Python arg substitution finds wrong package folder path?
I've recently played around with [Python expressions as substitution args in launch files](http://wiki.ros.org/roslaunch/XML#substitution_args) (on 16.04 AMD64/Kinetic/current .debs). I encountered a curious problem during doing so.
When trying to generalize this line:
the following expression works:
However, it has to be noted that I have to use the deprecated `xacro.py` here, as the `xacro` executable is not found. Investigating further I noted that
$(find xacro)
returns `/opt/ros/kinetic/lib/xacro` as a path, where also the `xacro` executable is located.
In contrast to this
$(eval find('xacro'))
returns `/opt/ros/kinetic/share/xacro` as a path, where only the `xacro.py` executable is located.
My expectation was that both calls to find should work identically, but apparently, this is not the case. My questions hence are:
- Is this expected behavior or a bug?
- Is there some other way to get to the "right" folder with the `xacro` executable while using Python substitution args in roslaunch?
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Problem with GP7 MotoROS
Hi, I am new with ROS.
I am currently using a GP7 robot and a YRC1000 controller, and following the tutorial I got a problem. All steps worked, until the 2.Usage.
I followed all the steps, even changing the joint_names but when I do the roslaunch, i got this error :
started roslaunch server http://ubuntu:40354/
SUMMARY
========
PARAMETERS
* /robot_ip_address: 192.168.255.1
* /rosdistro: indigo
* /rosversion: 1.11.21
NODES
/
joint_state (motoman_driver/robot_state)
joint_trajectory_action (industrial_robot_client/joint_trajectory_action)
motion_streaming_interface (motoman_driver/motion_streaming_interface)
auto-starting new master
process[master]: started with pid [8664]
ROS_MASTER_URI=http://localhost:11311
setting /run_id to 726dbf1c-956a-11e8-9786-000c293ae231
process[rosout-1]: started with pid [8677]
started core service [/rosout]
process[joint_state-2]: started with pid [8691]
process[motion_streaming_interface-3]: started with pid [8695]
process[joint_trajectory_action-4]: started with pid [8696]
[ERROR] [1533114505.924699714]: Failed to find topic_list parameter
[ERROR] [1533114505.962896918]: Failed to find topic_list parameter
I am confused with the urdf file, because when i change the joint names, with the 2.1 Joint Naming from the tutorial, it seems like nothing is changing.
In addition I can ping the robot, and I try to do the tricks from "Support Motoman Yaskawa gp-7 model"
Thank you for your help
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Roslaunch cannot locate rtamap node (Kinetic/jetsontx2)
I'm new in ROS and have installed rtabmap and rtamap-ros via apt in a jetsonTx2. i did a launch file with the zed wrapper, my package and the rtabmap-ros and it can not locate the node.
This is the launch file:
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Running a raspberry pi(wiring pi) node with roslaunch
I am having trouble to run a node present in /ros_workspace/devel/lib/blink where blink is the package and this directory contains the blink executable, this executable is ran with root permission, I dont understand the work around with roslaunch with such files.
How can I run this with one roslaunch with other nodes in the bot.
Please let me know any other info that maybe needed to solve this.
thank you.
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Gazebo9 Ros Melodic
Hello
I have a gazebo launch problem
I wanted to launch my_model_world.launch
It should open gazebo with my robot model and everything looks ok in gazebo but terminal shows:
[ERROR] [1534163227.741349859]: SpawnModel: Failure - model name my_model already exist.
I'm new in ROS and I don't know what is going on
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roscd can't find packages
hi ,
i'm using ros indigo and suddenly after reboot my pc i can't run some package , for example when i try to type :
"roscd turtle " and use the tab touch keyboard it gives only these packages
turtle_actionlib/ turtlebot_description/ turtle_tf/
turtlebot_capabilities/ turtlesim/ turtle_tf2/
so why it can't detect turtlbot_teleop and other packages ?
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respawn parameter problem
Hi
I am starting my launchfiles using this tutorial http://wiki.ros.org/roslaunch/API%20Usage (Part2). I have problem when I configured node parameter respawn = True in my launch file. Launch is not able to respawn node automatically when node is shutdown. I don't think this is normal behavior.
Thank you for your help.
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How to launch a node with it's dependencies have started
I have 5 launch file. Some node must start when some nodes have started , or they cannot work.
If all the nodes are written by myself, it is easy to deal with.
But now, I use some packages like moveit, whose code is not in my workspace and I donnot want to rewrite it :
https://github.com/ros/ros_comm/issues/1491#issuecomment-414695741
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roslaunch via gdb not working
Hi
I am trying to run roslaunch with gdb
I followed the instructions in [here](http://wiki.ros.org/roslaunch/Tutorials/Roslaunch%20Nodes%20in%20Valgrind%20or%20GDB)
and changed from:
to
I'm getting an error
RLException: Roslaunch got a No such file or directory error while attempting to run
gdb -ex run --args /home/avnerm/catkin_ws/devel/lib/my_mapping/my_mapping_node __name:=my_mapping_node __log:=/home/avnerm/.ros/log/bf9af474-a593-11e8-b43e-74d02b912ce1/my_mapping_node-1.log
Please make sure that all the executables in this command exist and have executable permission. This is often caused by a bad launch-prefix
When I run the gdb command directly from the terminal the program runs ok., e.g.
gdb -ex run --args /home/avnerm/catkin_ws/devel/lib/my_mapping/rm_mapping_node __name:=rm_mapping_node
So I assume it is some setting that is needed for roslaunch
I tried setting "`export ROS_HOSTNAME=localhost`" as recommended in one of the sites but this didn't help.
How can I run roslaunch via gdb?
Thanks,
Avner
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Introduction to tf tutorial: Second turtle does not follow the first one. (No errors)
I've been following http://wiki.ros.org/tf/Tutorials/Introduction%20to%20tf - I started with installing everything with the following command:
$ sudo apt-get install ros-kinetic-ros-tutorials ros-kinetic-geometry-tutorials ros-kinetic-rviz ros-kinetic-rosbash ros-kinetic-rqt-tf-tree
Luckily everything was already installed and I got this output:
Reading package lists... Done
Building dependency tree
Reading state information... Done
ros-kinetic-geometry-tutorials is already the newest version (0.2.2-0xenial-20180809-184418-0800).
ros-kinetic-ros-tutorials is already the newest version (0.7.1-0xenial-20180809-153903-0800).
ros-kinetic-rosbash is already the newest version (1.14.3-0xenial-20180809-134025-0800).
ros-kinetic-rqt-tf-tree is already the newest version (0.5.8-0xenial-20180809-162041-0800).
ros-kinetic-rviz is already the newest version (1.12.16-0xenial-20180809-192423-0800).
The following package was automatically installed and is no longer required:
python-libxml2
Use 'sudo apt autoremove' to remove it.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Now, when I launch `roslaunch turtle_tf turtle_tf_demo.launch` - I get no errors or warnings:
... logging to /home/snowden/.ros/log/3f67ef12-a810-11e8-bcd4-8ca982221578/roslaunch-snowden-Inspiron-N5010-17760.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.
started roslaunch server http://snowden-Inspiron-N5010:41377/
SUMMARY
========
PARAMETERS
* /rosdistro: kinetic
* /rosversion: 1.12.13
* /scale_angular: 2.0
* /scale_linear: 2.0
* /turtle1_tf_broadcaster/turtle: turtle1
* /turtle2_tf_broadcaster/turtle: turtle2
NODES
/
sim (turtlesim/turtlesim_node)
teleop (turtlesim/turtle_teleop_key)
turtle1_tf_broadcaster (turtle_tf/turtle_tf_broadcaster.py)
turtle2_tf_broadcaster (turtle_tf/turtle_tf_broadcaster.py)
turtle_pointer (turtle_tf/turtle_tf_listener.py)
ROS_MASTER_URI=http://localhost:11311
process[sim-1]: started with pid [17777]
process[teleop-2]: started with pid [17778]
process[turtle1_tf_broadcaster-3]: started with pid [17779]
process[turtle2_tf_broadcaster-4]: started with pid [17786]
process[turtle_pointer-5]: started with pid [17795]
Reading from keyboard
---------------------------
Use arrow keys to move the turtle.
After a brief moment, the second turtle revolves a little bit:
According to the tutorial, if I start moving the first turtle, the second turtle should follow it, but as visible in the GIF, nothing happens, it just stays as is. FWIW, my `turtle_tf_demo.launch` file looks like this:
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roslaunch terminal split screen
Hello,
i am launching over a launch file several nodes in new shells as shown here:
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rosversion error when trying to run roscore
Hello,
when I try to run the roscore or start my project launch file I get the following error:
... logging to /home/nvidia/.ros/log/1c5e18a0-aae7-11e8-8e0e-00044b8d24bd/roslaunch-tegra-ubuntu-30432.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.
Traceback (most recent call last):
File "/usr/local/bin/rosversion", line 7, in
from rospkg.rosversion import main
ImportError: No module named rosversion
Invalid tag: Cannot load command parameter [rosversion]: command [rosversion roslaunch] returned with code [1].
Param xml is
The traceback for the exception was written to the log file
The ROS environment variables command `env | grep ROS` gives me the following:
ROS_ROOT=/opt/ros/kinetic/share/ros
ROS_PACKAGE_PATH=/home/nvidia/EVObot/src:/opt/ros/kinetic/share
ROS_MASTER_URI=http://localhost:11311
ROSLISP_PACKAGE_DIRECTORIES=/home/nvidia/EVObot/devel/share/common-lisp
ROS_DISTRO=kinetic
ROS_ETC_DIR=/opt/ros/kinetic/etc/ros
The `rosversion -d` command gives me the same error but actually on ROS Hydro 1.12.13.
The strange thing is, I did not change anything ROS related and it worked correctly before the strange error.
It seems there is a problem with the rosversion-file but it contains the following code:
#!/usr/bin/python2.7
# -*- coding: utf-8 -*-
import re
import sys
from rospkg.rosversion import main
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
sys.exit(main())
I'm grateful for any help!
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Respawn entire launch file
Hi all,
I learned that respawn Tag in a launch file lets a single node being restarted if it crashes. Further, the required tag if set true, stops the entire launch if a particular important node closes.
Is it also possible to respawn all nodes in a launch file if a particular important node closes and needs to geht respawned?
Thank you for your Help.
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roslaunch and NVidia profiling
Has anyone had any success getting NVidia profiling tools and ROS to play well together?
At the moment, the best I can do is profile all processes, but that only reports memory copies to and from host, and some OpenCV (copy to and from `cv::Mat` and `cv::cuda::GpuMat`). My custom kernels are never profiled (yes, I have explicit `cudaProfilerStart()/Stop()` calls) and trying to use `launch-prefix="nvprof"` or directly profiling `roslaunch` never gets me anywhere except errors about being unable to load some nodelets.
Any suggestions as to what I might be doing wrong? I'm on Ubuntu 16.04.
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i have rplidar a3 launch error(error code -6)
I have an error for rplidar a3.
SUMMARY
========
PARAMETERS
* /rosdistro: indigo
* /rosversion: 1.11.21
* /rplidarNode/angle_compensate: True
* /rplidarNode/frame_id: laser
* /rplidarNode/inverted: False
* /rplidarNode/scan_mode: Sensitivity
* /rplidarNode/serial_baudrate: 256000
* /rplidarNode/serial_port: /dev/ttyUSB0
NODES
/
rplidarNode (rplidar_ros/rplidarNode)
rviz (rviz/rviz)
auto-starting new master
process[master]: started with pid [4082]
ROS_MASTER_URI=http://localhost:11311
setting /run_id to e480e554-b499-11e8-80d3-e0d55eaaa97a
process[rosout-1]: started with pid [4095]
started core service [/rosout]
process[rplidarNode-2]: started with pid [4103]
process[rviz-3]: started with pid [4113]
[ INFO] [1536543369.462962123]: RPLIDAR running on ROS package rplidar_ros. SDK Version:1.7.0
RPLIDAR S/N: 6BF39AF2C1EA9FC0A2EB92F1F8203C02
[ INFO] [1536543369.966742531]: Firmware Ver: 1.24
[ INFO] [1536543369.966776559]: Hardware Rev: 6
[ INFO] [1536543369.967689753]: RPLidar health status : 0
[ INFO] [1536543370.582106429]: current scan mode: Sensitivity, max_distance: 25.0 m, Point number: 15.9K , angle_compensate: 4
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
[rplidarNode-2] process has died [pid 4103, exit code -6, cmd /opt/ros/indigo/lib/rplidar_ros/rplidarNode __name:=rplidarNode __log:=/home/ksj/.ros/log/e480e554-b499-11e8-80d3-e0d55eaaa97a/rplidarNode-2.log].
log file: /home/ksj/.ros/log/e480e554-b499-11e8-80d3-e0d55eaaa97a/rplidarNode-2*.log
It is the same error as above.
Please provide a solution to this problem.
Thank you.
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Files not found when launching from remote PC
When trying to use a launchfile to launch ROS nodes on two seperate machines, the remote PC cannot find the files I want to launch. I have also installed both packages on both machines for testing purpouses. The files is can be launched on both PC's, but when I try to launch them remotely, they're not found.
I have looked at a lot of other people using ROS on two machines, but I cannot seem to find any solution to this problem. Any suggestions/help is appreciated. All necessary files is listed below.
EDIT: I have tried launching the turtlesim teleop node on the remote PC, a node that is native in ROS. This works with no problem, so the problem lies in custom made nodes.
EDIT: Added the "printenv" variables from manually
**Main launch file**
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Adding arguments via command line during roslaunch
Hi! I want to add command line arguments while calling my launch file in the bash, just like how I add it while running the node via rosrun. For eg. `rosrun pkg_name executable_name /home/user/Documents/my_file.yml /home/user/Pictures/` The closest answer I found to solve my problem was [this](https://answers.ros.org/question/277622/roslaunch-command-line-args/). My launch file looks like this
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roslaunch command line args
Read through all the tutorials, but couldn't find the answer to this one. I have a ROS node executable, which I can run like this:> ./my_node -arg1 -arg2
I can also start it using roslaunch and a my_launch.launch file:
> roslaunch my_launch.launch
How do I specify arg1 and arg2 when starting using roslaunch? I.e. how do I get arg1 and arg2 to show up in argc and argv?
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Reading vector from launch file does not work in Indigo
Hi to all,
I'm facing an issue while reading a vector parameter from launch file in ROS Indigo. I set the parameter in my launch file in the private namespace of my node as;
And I'm trying to read it as described [here](http://wiki.ros.org/roscpp/Overview/Parameter%20Server#Retrieving_Lists) or [in this previous answer](https://answers.ros.org/question/206146/arrays-ros-launch-file/):
ros::NodeHandle nh("~");
std::vector x0;
nh.getParam("x0", x0);
but if I try to print the size of the vector it tells me 0. From the [roslaunch param documentation](http://wiki.ros.org/roslaunch/XML/param) it seems that parameters which are not scalar numbers or literal booleans are interpreted as strings.
Why is there such inconsistency between the types that I can read from the parameter server and the parameters that I can set from a launch file? How can I solve this problem?
Thanks to all in advance.
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