Hi,
I'm trying to run the pcl tutorial, since i need it for an university project.
Unfortunately when I try to run the exaple
arnold@arnold-UX31E:~/catkin_ws$ rosrun my_pcl_tutorial example input:=/camera/depth/points
I get the error back:
> [rosrun] Couldn't find executable named example below /home/arnold/catkin_ws/src/my_pcl_tutorial
The executable crated with `catkin_make` is in the build folder, not in src (this seams to be correct).
But `rosrun` trys to run it from the src folder. A little research came to the conclusion that it isn't sourced right.
When I run
`arnold@arnold-UX31E:~/catkin_ws$ source devel/setup.sh` I get no response (no error or approval) and nothing changes.
I already deleted the workspace 3 times and just followed the instructions from this Tutorials.
http://wiki.ros.org/catkin/Tutorials/create_a_workspace and http://wiki.ros.org/pcl/Tutorials
Running Ros Indigo under Ubuntu 14.04 LTS
↧
source won't change the package path
↧
File output With roslaunch
Hello everyone,
I just have a simple question on which i'm stuck for a few days :
I have a node in which I output a hand written log file using the c++ functions from fstream.
When i'm starting it using rosrun, my file are correctly generated.
However, using a rosrun is not practical when you want to use topics rename and I wanted to make it generic and to launch it with a roslaunch.
However, it appears that, when I start it with the roslaunch, I don't suceed anymore to write my output files.
I looked into the output option from the roslaunch, "screen" or "log" ( default) are available but in the doc it's written that they should redirect stdout/stderr (http://wiki.ros.org/roslaunch/XML/node) and not other custom outputs.
If you have any solution or any idee to fix it, I will welcome them with pleasure =D
↧
↧
Running SROS
I have installed **SROS** in a fresh Ubuntu 16.04 machine, following the instructions at http://wiki.ros.org/SROS/Installation/Ubuntu
..and I've added the following line to my .bashrc file:
> source ~/sros/**install**/setup.bash
I was able to successfully run the key server from SROS by issuing a "sroskeyserver" command.
However, when running "sroscore" in a separate terminal I get the following error:
initializing node's keystore: /home/david/.ros/sros/keystore/nodes/roslaunch
all startup certificates are present
... logging to /home/david/.ros/log/3ccb8758-6ba5-11e7-97cb-080027727615/roslaunch-david-VirtualBox-8839.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://david-VirtualBox:35274/
ros_comm version 1.12.0
SUMMARY
========
PARAMETERS
* /rosdistro: kinetic
* /rosversion: 1.12.0
NODES
auto-starting new master
process[master]: started with pid [8851]
initializing node's keystore: /home/david/.ros/sros/keystore/nodes/master
all startup certificates are present
ROS_MASTER_URI=https://david-VirtualBox:11311/
ERROR: unable to retrieve /run_id from parameter server
The traceback for the exception was written to the log file
[master] killing on exit
You can find the **master log** [HERE](https://www.dropbox.com/s/qc59bv2s21ljn74/master.log?dl=0) and the **roslaunch log** [HERE](https://www.dropbox.com/s/wz9r9du3060valt/roslaunch-david-VirtualBox-8839.log?dl=0).
@ruffsl, can you perhaps let me know what I am doing wrong?
Thank you in advance!
↧
Why I have to run a node twice to make it work?
Hi,
I have just written a node that subscribes to a topic, however, the first time I make rosrun it doesnt start, I must "stop" the node with CTRL+C, then again rosrun, and magically this second time it works. The problem started when I tried to subscribe to the topic, so here is my definition of the subscriber and the callback:
subscriber_ = nh_private.subscribe("/sim/objects_ground_truth",
params_.msg_queue_size,
&Testnode::callbackSubscriber,
this,
ros::TransportHints().tcpNoDelay());
void Testnode::callbackSubscriber(const automated_driving_msgs::ObjectStateArray::ConstPtr& msg) {
ROS_INFO("Say Hi\n");
}
Does anyone know what is happening here?
↧
when i study the rviz:Markers: Sending Basic Shapes (C++), i come across some problem: when i run this order: rosrun using_markers basic_shapes, it told me that "Please create a subscriber to the marker",so how to solve this problem?
1.my rosdistro: indigo; my ros workspace is catkin.
2.my tutorial:[link text](http://wiki.ros.org/rviz/Tutorials/Markers%3A%20Basic%20Shapes)
3.and then when i run :rosrun rviz rviz, it come up with nothing in my rviz, like this picture:no fixed frame, no shape on the plane.
----------
- List item
↧
↧
Problem with robot_upstart
I am trying to install robot_upstart for my package
serge@media:~/NetBeansProjects/ROS_beginner_tutorials/ros_ws$ rosrun robot_upstart install beginner_tutrorials/launch/m1.launch
But I get the error
Unable to locate path launch/m1.launch in package beginner_tutrorials. Installation aborted.
I already entered the command
source ./devel/setup.bash
And am definitely sure that it it works, because
rosrun beginner_tutorials talker
works properly. And if I do not enter source command I can't run the talker, so the source is added
Also when I enter
rospack find beginner_tutorials
the package can be found.
So what can be a cause of the problem?
And maybe I understand something wrong about robot_upstart. Does it creates a new launch file or can only write/overwrite data in existing launchfile or maybe it require a ready launchfile?
↧
Works with rosrun but not with roslaunch
Hello,
I have a video data being streamed into a local host (to a socket). When I run my executable using rosrun it works well, but when I use roslaunch to run the same node, it says the resource is temporarily unavailable (error from the socket).
The error message I get is this:
'
process[cmvideo_node-1]: started with pid [9553]
VDS: unknown host: __name:=cmvideo_node
Can't initialise vds client (returns -2, Resource temporarily unavailable)
terminate called after throwing an instance of 'class_loader::LibraryUnloadException'
what(): Attempt to unload library that class_loader is unaware of.
[cmvideo_node-1] process has died [pid 9553, exit code -6, cmd /home/providentia/Documents/bridge_demo/workspace/cm_sim/devel/lib/cmvideo/cmvideo_node __name:=cmvideo_node __log:=/home/providentia/.ros/log/395ae26a-80d3-11e7-abe7-f48e38a43ac3/cmvideo_node-1.log].
log file: /home/providentia/.ros/log/395ae26a-80d3-11e7-abe7-f48e38a43ac3/cmvideo_node-1*.log
all processes on machine have died, roslaunch will exit
shutting down processing monitor...
... shutting down processing monitor complete
done
'
I use the following for rosrun:
'rosrun cmvideo cmvideo_node'
And I use the following launch file:
'
↧
Works with rosrun but not with roslaunch
Hello,
I have a video data being streamed into a local host (to a socket). When I run my executable using rosrun it works well, but when I use roslaunch to run the same node, it says the resource is temporarily unavailable (error from the socket).
The error message I get is this:
`
process[cmvideo_node-1]: started with pid [9553]
VDS: unknown host: __name:=cmvideo_node
Can't initialise vds client (returns -2, Resource temporarily unavailable)
terminate called after throwing an instance of 'class_loader::LibraryUnloadException'
what(): Attempt to unload library that class_loader is unaware of.
[cmvideo_node-1] process has died [pid 9553, exit code -6, cmd /home/providentia/Documents/bridge_demo/workspace/cm_sim/devel/lib/cmvideo/cmvideo_node __name:=cmvideo_node __log:=/home/providentia/.ros/log/395ae26a-80d3-11e7-abe7-f48e38a43ac3/cmvideo_node-1.log].
log file: /home/providentia/.ros/log/395ae26a-80d3-11e7-abe7-f48e38a43ac3/cmvideo_node-1*.log
all processes on machine have died, roslaunch will exit
shutting down processing monitor...
... shutting down processing monitor complete
done
`
I use the following for rosrun:
`rosrun cmvideo cmvideo_node`
And I use the following launch file:
`
↧
rosrun tab completion ignore certain directory
Hi everyone,
I've got a problem with `rosrun`. I'm working on a company computer with Ubuntu 16.04. On this system the home folder of my user is located in a path like `/home/companyname/username`. I certainly have access to this path but not directly to `/home/companyname`. The result is that tab completion of `rosrun` always greets me with an error message like
[rospack] Warning: error while crawling /home/companyname: boost::filesystem::directory_iterator::construct: Permission denied: "/home/companyname"
and several other directories that I don't have access to.
Can I somehow teach `rosrun` to ignore particularly these paths where I know I don't have access?
Thank you
↧
↧
Is it possible to run nodes without source ?
Hi,
I'm working with ROS Kinetic in docker. I'm doing several thing through jenkins and several scripts to put my project (wrapped with ros) and all the dependency in the docker.
As I want to keep my docker as light as possible I would like to remove all the source code from the package. The ros project is orbslam (https://github.com/raulmur/ORB_SLAM2) with some update to publish the transform and some other data.
All the ros part is working well in the docker. But is there a way to "ros run" my RGBD app without having source code in the docker ? rosbuild isn't creating any exe that I could run without source ? Maybe only with lib .so ?
↧
How to know which package is being used when two packages with same name are installed at different location?
Hi,
I have installed Hokuyo_node deprecated version from github. I already have Hokuyo_node installed while installing ROS. Now, when I use `rosun hokuyo_node hokuyo_node`, how do I make sure which package is being used?
thanks,
↧
something is wrong when i run turtlesim_node
I am a beginner, I am learning ROS.org I use the ‘indigo’ version
when i run this "rosrun turtlesim turtlesim_node"
The screen display
[ERROR] [1505802741.783016851]: [registerPublisher] Failed to contact master at [localhost:11311]. retrying...
How to resolve this problem?
↧
error while loading shared libraries
I want to use shared objects as libraries. The .so files of them are at my disposal.
I created a catkin_package. That package contains a source, include and lib folder (where I put the .so files)
My CMakeLists.txt of the package is the following:
cmake_minimum_required(VERSION 2.8.3)
project(yocto3d)
find_package(catkin REQUIRED COMPONENTS)
catkin_package()
include_directories(include ${catkin_INCLUDE_DIRS})
add_executable(yocto3d src/main.cpp)
target_link_libraries(yocto3d ${catkin_LIBRARIES} ${PROJECT_SOURCE_DIR}/lib/libyapi.so.1.0.1 ${PROJECT_SOURCE_DIR}/lib/libyocto.so.1.0.1)
Everything compiles without warnings and errors, but when I run
rosrun yocto3d yocto3d
I get the following error (can't find the libraries)
/home/dh/catkin_ws/devel/lib/yocto3d/yocto3d: error while loading shared libraries: libyocto.so.1.0.1: cannot open shared object file: No such file or directory
What am I missing?
↧
↧
Can't execute rosjava Nodes. RosRUn not found Exception
I`ve been able to build and execute the tutorial_pubsub.
Then i created a new Rosjava package in an existing catkin_ws.
When i run gradle install and gradle installApp it all compiles right.
But when i now try to execute these new nodes:
scryer@Scryer:~/catkin_ws/src/rosjava_foo$ ./build/install/rosjava_foo/bin/rosjava_foo ben.dude.Listener
i get:
Exception in thread "main" java.lang.NoClassDefFoundError: org/ros/RosRun
Caused by: java.lang.ClassNotFoundException: org.ros.RosRun
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
Could not find the main class: org.ros.RosRun. Program will exit.
What am i missing to execute Nodes that are not in the rosjava folder?
↧
How to pass rosparam yaml file on rosrun cmd line
Is there a way to pass rosparam yaml file on rosrun cmd line
↧
rosrun vs roslaunch to run a single node, any difference?
Hi everyone!
Well, in my understanding `launch` files are meant to launch a node or so many nodes at a time and allow setting parameters dynamically , remapping and making sure that nodes don't stop if `respawn` is set to `True` and so many other stuff.
I was wondering what is the difference between:
↧
rosrun crash on auto-complete (tab)
dear all,
i am using ros kinetic and ubuntu 16.04. since a few days I recognize the fact that if I hit tab after typing rosrun to see the available packages the console freezes and dies after a few seconds. when I remove the catkin workspace from the .bashrc I do not see that phenomena.
I am grateful for any hints
gerald
↧
↧
rosrun gets held
Hello,
I try to launch a node by rosrun. But when on terminal I write rosrun and give pckage name, it gets held. And screen gets crash.
↧
rosrun beginner_tutorials listener.py results in no output
HI All
I'm using ubuntu 16/04 along with python for writing nodes.
I just have few hours experience on ROS.
I pushed rosrun beginner_tutorials listener.py after defining the source but this resulted in no output ust the cursor blinking for few times then stagnant.
I rechecked the CMakeLists.txt but couldn't find any any dependencies in it with reference to tutorials (**I'm not sure though**)
Sincerely
↧
python syntax error for rosrun .py script
Hello I'm a noob at python, I downloaded this github package (turtlesim_hunter)
Then when I rosrun I get a syntax error:
knives@knives:~/catkin_ws/src/turtlesim_hunter/src/turtlesim_hunt/Scripts$ rosrun turtlesim_hunt hunt.py
File "/home/knives/catkin_ws/src/turtlesim_hunter/src/turtlesim_hunt/Scripts/hunt.py", line 151
print "Found #" + str(huntedTurtles) + " after " + str(finalTime) + " Current Avg: " + str(totalHuntTime / huntedTurtles)
^
SyntaxError: invalid syntax
The issue is at line 151 in the hunt.py script:
https://github.com/tiedyedguy/turtlesim_hunter/blob/master/src/turtlesim_hunt/Scripts/hunt.py
print "Found #" + str(huntedTurtles) + " after " + str(finalTime) + " Current Avg: " + str(totalHuntTime / huntedTurtles)
I don't know whats wrong and I can't google myself to a specific answer, is the issue that this was written with python 3 and I only have python 2.7 installed? I highly doubt this guy has an error in his code since it's working for him:
https://www.youtube.com/watch?v=LywSOGRtFLY
↧
