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2021-04-27 09:39:21 -0500 marked best answer rostopic no longer work

I am working with ubuntu 14.04 indigo. I was downloading a python program and installed a few dependences like python3-pandas, python3-yaml, python3-rospkg. Now, it seems like my rostopic doesn't work anymore, when I run it, it shows

~$ rostopic 
rostopic: command not found

, I tried source the setup files below but rostopic still woudn't work.

echo "source /opt/ros/indigo/setup.bash" >> ~/.bashrc
source ~/.bashrc
source /opt/ros/indigo/setup.bash
source ~/catkin_ws/devel/setup.bash

Following is my env values:

ROS_ROOT=/opt/ros/indigo/share/ros
ROS_MASTER_URI=http://192.168.1.11:11311

I tried to export the following env values, and ran it again but rostopic still didn't work.

ROS_ROOT=/opt/ros/indigo/share/ros
ROS_PACKAGE_PATH=/home/administrator/catkin_ws/src:/opt/ros/indigo/share:/opt/ros/indigo/stacks
ROS_MASTER_URI=http://localhost:11311
ROSLISP_PACKAGE_DIRECTORIES=/home/administrator/catkin_ws/devel/share/common-lisp
ROS_DISTRO=indigo
ROS_ETC_DIR=/opt/ros/indigo/etc/ros

Also, when I hit double tab on ros, it doesn't show rostopic as an option:

~$ ros
rosawesome                    rosdistro_migrate_to_rep_143
rosboost-cfg                  rosdistro_reformat
roscat                        rosed
roscd                         rosinstall
rosco                         roslocate
roscp                         rosls
rosd                          rospd
rosdep                        rospython
rosdep-source                 rosrun
rosdistro_build_cache         rosversion
rosdistro_freeze_source       rosws
rosdistro_migrate_to_rep_141

From the above list, it seems like my roslaunch is missing as well. Did downloading those 3 packages break my ros environment? What can I do to fix it?

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2018-10-14 21:38:23 -0500 commented answer Where is magnetometer measurements in the IMU messages

thank you for you folks' answer!

2018-10-14 21:37:49 -0500 marked best answer Where is magnetometer measurements in the IMU messages

I am using ros indigo, working with a MIDG II GPS/INS sensor using this python wrapper, I am able to produce a IMU message, but where is the magnetometer data?

header: 
  seq: 3489
  stamp: 
    secs: 1538864664
    nsecs: 333019018
  frame_id: MIDG_base_frame
orientation: 
  x: -0.0243242513388
  y: 0.0113927619532
  z: -0.242603212595
  w: 0.969753742218
orientation_covariance: [0.0005, 0.0, 0.0, 0.0, 0.0005, 0.0, 0.0, 0.0, 0.0005]
angular_velocity: 
  x: 0.0160570291183
  y: -0.0315904594611
  z: -0.000174532925199
angular_velocity_covariance: [0.0005, 0.0, 0.0, 0.0, 0.0005, 0.0, 0.0, 0.0, 0.0005]
linear_acceleration: 
  x: 0.9799096177
  y: 0.470356616496
  z: -9.75010069612
linear_acceleration_covariance: [0.0005, 0.0, 0.0, 0.0, 0.0005, 0.0, 0.0, 0.0, 0.0005]

How would I get magnetometer data if I need it?

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2018-10-12 20:52:58 -0500 commented answer Where is magnetometer measurements in the IMU messages

yeah, it's changing slightly, I am wondering why the magnetometer me measurement is giving in quarteron instead of just

2018-10-12 18:47:28 -0500 asked a question Where is magnetometer measurements in the IMU messages

Where is magnetometer measurements in the IMU messages I am using ros indigo, working with a MIDG II GPS/INS sensor usin

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2018-09-05 18:16:33 -0500 edited question midg II gps no fix status

midg II gps no fix status I am using indigo and trying to get the midg II ins-gps to work with the husky robot. I found

2018-09-05 18:06:43 -0500 edited question midg II gps no fix status

midg II gps no fix status I am using indigo and trying to get the midg II ins-gps to work with the husky robot. I found

2018-09-05 18:04:37 -0500 asked a question midg II gps no fix status

midg II gps no fix status I am using indigo and trying to get the midg II ins-gps to work with the husky robot. I found

2018-09-03 04:12:48 -0500 commented answer how to get wheel encoder data on HuskyA200

Thank you for the reply. I want to use raw wheel encoders's tick signal like in this post to calculate the odometry. So

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2018-09-01 16:38:27 -0500 commented answer how to get wheel encoder data on HuskyA200

Thank you for the reply. I want to use raw wheel encoders's tick signal like in this post to calculate the odometry. So

2018-08-31 23:37:47 -0500 asked a question how to get wheel encoder data on HuskyA200

how to get wheel encoder data on HuskyA200 I am working with Indigo Husky A200, and I want to try to implement the odome

2018-08-07 21:38:19 -0500 marked best answer For frame [laser]: Frame [laser] does not exist

I am running ubuntu 14.4 indigo. I downloaded this line extraction packet.. I then roslaunch husky_gazebo husky_playpen.launch and roslaunch husky_viz view_robot.launch to start a husky simulation. Then, I followed the line extraction package instruction and started roslaunch example.launch. I checked that both /line_segments and /line_markers are giving me outputs by rostopic echo. Now, I am trying to make the line marker show up on rivz, but I am running into the following error when I added the marker For frame [laser]: Frame [laser] does not exist a picture is shown below: image description

anyone have suggestions on this? thank you.

2018-08-07 21:38:19 -0500 commented answer For frame [laser]: Frame [laser] does not exist

thank you!

2018-08-07 20:57:24 -0500 asked a question For frame [laser]: Frame [laser] does not exist

For frame [laser]: Frame [laser] does not exist I am running ubuntu 14.4 indigo. I downloaded this line extraction packe

2018-08-03 16:35:02 -0500 edited question EKF localization with unknown correspondence

EKF localization with unknown correspondence I am working on a simulation with the huskyA200. I want to implement the EK

2018-08-03 16:34:30 -0500 edited question EKF localization with unknown correspondence

EKF localization with unknown correspondence I am working on a simulation with the huskyA200. I want to implement the EK

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