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2020-05-01 10:16:15 -0500 asked a question Could not find a package configuration file provided by "libstatistics_collector"

Could not find a package configuration file provided by "libstatistics_collector" Hi, I am trying to build my workspac

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2020-03-31 21:31:35 -0500 asked a question Need help in loading 3 Rviz applications for 3 turtlebots in simulation

Need help in loading 3 Rviz applications for 3 turtlebots in simulation Hi, I am currently looking at this fleet manager

2020-03-31 21:08:50 -0500 marked best answer Problem with building workspace in ros2

I was trying to set up a simple client in ROS1 (melodic) and a simple server in ROS2 (eloquent). Following the tutorial https://github.com/osrf/free_fleet/bl.... However I got stuck at the point where I am building my workspace in ROS2 (at colcon build)

cd ~/server_ws
source /opt/ros/eloquent/setup.bash

# build cyclonedds first with the necessary cmake flags
colcon build --packages-select cyclonedds --cmake-args -DBUILD_IDLC=NO

# build the rest of the packages
colcon build

These were the following error messages.

Starting >>> rmf_traffic
--- stderr: rmf_traffic                                                  
CMake Error at /usr/share/cmake-3.10/Modules/FindPkgConfig.cmake:415 (message):
  A required package was not found
Call Stack (most recent call first):
  /usr/share/cmake-3.10/Modules/FindPkgConfig.cmake:593 (_pkg_check_modules_internal)
  CMakeLists.txt:26 (pkg_check_modules)
---
Failed   <<< rmf_traffic    [ Exited with code 1 ]
Aborted  <<< rmf_fleet_msgs                       
Aborted  <<< rmf_door_msgs                        
Aborted  <<< building_map_msgs
Aborted  <<< rmf_lift_msgs                         
Aborted  <<< rmf_workcell_msgs                     
Aborted  <<< rmf_dispenser_msgs                    
Aborted  <<< rmf_traffic_msgs

Please advise.

2020-03-30 20:32:21 -0500 commented answer Problem with building workspace in ros2

Thank you, this works! Yes, I will do so! Thank you so much!

2020-03-30 04:42:19 -0500 commented answer Problem with building workspace in ros2

@marguedas I think I mentioned it wrongly. The cilent_ws which is the workspace to be done in ros-melodic has the error

2020-03-30 03:46:35 -0500 commented answer Problem with building workspace in ros2

@marguedas I have solved the map_server error by installing it on the melodic distribution from debian packages. Howeve

2020-03-30 02:53:42 -0500 answered a question Error building ros2 package

I solved this by installing ros2 gazebo from debian packages. Enter sudo apt install ros-<distro>-gazebo-ros-pkgs

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2020-03-29 22:29:54 -0500 asked a question Error building ros2 package

Error building ros2 package Sorry to bother, does anyone know what does the below error is requesting me to do? fatal

2020-03-29 20:47:15 -0500 commented answer Problem with building workspace in ros2

@marguedas Yes, this is the message when trying to use rosdep install --from-paths src --ignore-src -y in the client_ws

2020-03-29 20:44:40 -0500 commented answer Problem with building workspace in ros2

@marguedas Yes, this is the message when trying to use rosdep install --from-paths src --ignore-src -y in the client_ws

2020-03-29 20:44:32 -0500 commented answer Problem with building workspace in ros2

@marguedas Yes, this is the message when trying to use rosdep install --from-paths src --ignore-src -y in the client_ws

2020-03-29 20:44:09 -0500 commented answer Problem with building workspace in ros2

@marguedas Yes, this is the message when trying to use rosdep install --from-paths src --ignore-src -y in the client_ws

2020-03-29 20:43:58 -0500 commented answer Problem with building workspace in ros2

@marguedas Yes, this is the message when trying to use rosdep install --from-paths src --ignore-src -y in the client_ws

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2020-03-28 09:42:19 -0500 marked best answer Could not find the planner configuration 'None' on the param server

Hello, I am trying to launch my launch file but I am met with a few error messages. The objective of this launch file is to use RVIZ to display my robot. I was able to bring up the RVIZ GUI but nothing else was showing up. The map display also mentions that there was no map specified. Please help, thank you.

The launch file contents:

<launch>
  <!-- The planning and execution components of MoveIt! configured to run -->
  <!-- using the ROS-Industrial interface. -->

  <!-- Non-standard joint names:
       - Create a file [robot_moveit_config]/config/joint_names.yaml
           controller_joint_names: [joint_1, joint_2, ... joint_N]
       - Update with joint names for your robot (in order expected by rbt controller)
       - and uncomment the following line: -->
  <rosparam command="load" file="$(find myworkcell_moveit_config)/config/joint_names.yaml"/>

  <!-- the "sim" argument controls whether we connect to a Simulated or Real robot -->
  <!--  - if sim=false, a robot_ip argument is required -->
  <arg name="sim" default="true" />
  <arg name="robot_ip" unless="$(arg sim)" />

  <!-- load the robot_description parameter before launching ROS-I nodes -->
  <include file="$(find myworkcell_moveit_config)/launch/planning_context.launch" >
   <arg name="load_robot_description" value="true" />
  </include>

  <!-- run the robot simulator and action interface nodes -->
  <group if="$(arg sim)">
    <include file="$(find industrial_robot_simulator)/launch/robot_interface_simulator.launch" />

    <!-- publish the robot state (tf transforms) -->
    <node name="robot_state_publisher" pkg="robot_state_publisher" type="robot_state_publisher" />
  </group>

  <!-- run the "real robot" interface nodes -->
  <!--   - this typically includes: robot_state, motion_interface, and joint_trajectory_action nodes -->
  <!--   - replace these calls with appropriate robot-specific calls or launch files -->
  <group unless="$(arg sim)">
    <remap from="follow_joint_trajectory" to="joint_trajectory_action"/>
    <include file="$(find ur_modern_driver)/launch/ur_common.launch" >
      <arg name="robot_ip" value="$(arg robot_ip)"/>
      <arg name="min_payload" value="0.0"/>
      <arg name="max_payload" value="5.0"/>
    </include>
  </group>

  <include file="$(find myworkcell_moveit_config)/launch/move_group.launch">
    <arg name="publish_monitored_planning_scene" value="true" />
  </include>

  <include file="$(find myworkcell_moveit_config)/launch/moveit_rviz.launch">
    <!-- <arg name="config" value="true"/> -->
  </include>

</launch>

After running $ roslaunch myworkcell_moveit_config demo.launch

There is an error message which shows:

Planning scene monitors started.
[ INFO] [1581661415.277737577]: Initializing OMPL interface using ROS parameters
[ERROR] [1581661415.285019096]: Could not find the planner configuration 'None' on the param server

The subsequent messages are:

[ INFO] [1581661415.328146408]: Using planning interface 'OMPL'
[ INFO] [1581661415.345241373]: Param 'default_workspace_bounds' was not set. Using default value: 10
[ INFO] [1581661415.345810377]: Param 'start_state_max_bounds_error' was set to 0.1
[ INFO] [1581661415.346276251]: Param 'start_state_max_dt' was not set. Using default value: 0.5
[ INFO] [1581661415.346782261]: Param 'start_state_max_dt' was not set. Using default value: 0.5
[ INFO] [1581661415.347236837]: Param 'jiggle_fraction' was set to 0.05
[ INFO] [1581661415.347696292]: Param 'max_sampling_attempts' was not set. Using default value: 100
[ INFO] [1581661415.347767134]: Using planning request adapter 'Add Time Parameterization'
[ INFO] [1581661415.347794595]: Using planning request adapter 'Fix Workspace Bounds'
[ INFO] [1581661415.347822067]: Using planning request adapter 'Fix Start State Bounds'
[ INFO] [1581661415.347845393]: Using ...
(more)
2020-03-28 09:42:13 -0500 received badge  Famous Question (source)
2020-03-28 08:56:28 -0500 commented answer Problem with building workspace in ros2

Thank you for the looking into the issue. After I entered rosdep install --from-paths src --ignore-src -y into the termi

2020-03-28 08:56:21 -0500 commented answer Problem with building workspace in ros2

Thank you for the looking into the issue. After I entered rosdep install --from-paths src --ignore-src -y into the termi

2020-03-28 08:47:12 -0500 edited question Problem with building workspace in ros2

Problem with building workspace in ros2 I was trying to set up a simple client in ROS1 (melodic) and a simple server in

2020-03-28 08:46:30 -0500 edited question Problem with building workspace in ros2

Problem with building cyclonedds in ros2 I was trying to set up a simple client in ROS1 (melodic) and a simple server in

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2020-03-26 08:25:48 -0500 commented question Problem with building workspace in ros2

@marguedas Perhaps my problem is another issue. The following line which I have to run is colcon build The error message

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2020-03-26 05:39:05 -0500 asked a question Problem with building workspace in ros2

Problem with building cyclonedds in ros2 I was trying to set up a simple client in ROS1 (melodic) and a simple server in

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2020-03-26 04:05:30 -0500 asked a question apt-get update failure

apt-get update failure Hi, I have recently installed ros2 eloquent and ros2 dashing into my laptop computer. As i tried

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2020-03-11 22:37:00 -0500 asked a question ROS2 rqt error messages

ROS2 rqt error messages Hi, I am recently installed ROS2 dashing on my ubuntu 18.04 laptop. Following the basic tutori

2020-03-10 04:38:36 -0500 marked best answer colcon build --symlink-install: TypeError: 'NoneType' object is not iterable

Hi, I am trying to install ROS 2 on my ubuntu 18.04 laptop.

However, after entering colcon build --symlink-install. I am met with this error,

Starting >>> test_launch_ros
--- stderr: test_launch_ros                     
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/colcon_core/executor/__init__.py", line 91, in __call__
    rc = await self.task(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/colcon_core/task/__init__.py", line 92, in __call__
    return await task_method(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/colcon_ros/task/ament_python/build.py", line 55, in build
    setup_py_data.get('data_files', []))
  File "/usr/lib/python3/dist-packages/colcon_core/task/python/__init__.py", line 34, in get_data_files_mapping
    for data_file in data_files:
TypeError: 'NoneType' object is not iterable
---
Failed   <<< test_launch_ros    [ Exited with code 1 ]
Aborted  <<< examples_rclcpp_minimal_action_server         
Aborted  <<< test_communication                           
Aborted  <<< message_filters                             
Aborted  <<< examples_rclcpp_minimal_composition         
Aborted  <<< examples_rclcpp_minimal_action_client       
Aborted  <<< rosbag2                                     
Aborted  <<< quality_of_service_demo_cpp                  
Aborted  <<< intra_process_demo                           
Aborted  <<< demo_nodes_cpp                               
Aborted  <<< test_quality_of_service                      
Aborted  <<< turtlesim

And

Summary: 220 packages finished [2min 23s]
  1 package failed: test_launch_ros
  11 packages aborted: demo_nodes_cpp examples_rclcpp_minimal_action_client examples_rclcpp_minimal_action_server examples_rclcpp_minimal_composition intra_process_demo message_filters quality_of_service_demo_cpp rosbag2 test_communication test_quality_of_service turtlesim
  1 package had stderr output: test_launch_ros
  39 packages not processed
'NoneType' object is not iterable

Please advise, thank you.