process has died

[zrd1234]

Hello, I found that when the robot started tracking, it would report an error. What is the reason? Thank you very much.

[Geonhee-LEE]

Hi, @zrd1234. Would you explain for more detailed information?? For examples, executed launch file and dependencies.

[zrd1234]

Hi, @zrd1234. Would you explain for more detailed information?? For examples, executed launch file and dependencies.

After I compile the program in the NX trajectory_tracking_gazebo.launch file, everything else runs, but when the model is going to move, the process is reported to die. When I run roslaunch mpc_ros nav_gazebo.launch, everything works fine, but when I give it a target point, the process dies. Thank you for your reply. Thank you.

[zrd1234]

Hello, when you have time, can you answer my question? I'm a little worried. Thank you very much.

[Geonhee-LEE]

Hi, @zrd1234. In order to send the target goal via RViz(2D Goal Arrow), you need to replace the stand-along node with the move_base plugin such as DWA, etc. I tried to construct the dummy move_base plugin, but it has some limitations. If you want to send the target goal, you can refer mpc_plugin.xml.

[zrd1234]

Hello, is it possible that I run ref under the x86 architecture because of the architecture problem ref trajectory tracking_gazebo.launch file can succeed. But when I run under the arm architecture, an error will be reported. I don't understand what you mean by reference. Thank you for your reply.

[Geonhee-LEE]

Hello, is it possible that I run ref under the x86 architecture because of the architecture problem ref trajectory tracking_gazebo.launch file can succeed. But when I run under the arm architecture, an error will be reported. I don't understand what you mean by reference. Thank you for your reply.

I sorry to that, but I haven't never tried to launch mpc_ros on arm architecture. I checked the error log you uploaded: "failed to path generation". The meaning is that it can't make the path since too short distance. Could you check the "mpc_reference" topic visualization on Rviz and decrease the "path_length" param value?

[zrd1234]

您好，由于体系结构问题，我是否有可能在x86架构下运行ref ref trajectory tracking_gazebo.launch文件可以成功。但是当我在手臂架构下运行时，会报告错误。我不明白你所说的参考是什么意思。感谢您的回复。

对此我很抱歉，但我从未尝试过在 arm 架构上启动。我检查了您上传的错误日志：“无法生成路径”。意思是它不能走路，因为距离太短。您能否检查 Rviz 上的“mpc_reference”主题可视化并减少“path_length”参数值？mpc_ros Thank you for your reply. I will try it and ask again if there are any questions. Thank you very much for replying to me so quickly. Thank you very much.

[Geonhee-LEE]

If you solved this issue, please close the issue.

[zrd1234]

Hello, is it possible that I run ref under the x86 architecture because of the architecture problem ref trajectory tracking_gazebo.launch file can succeed. But when I run under the arm architecture, an error will be reported. I don't understand what you mean by reference. Thank you for your reply.

I sorry to that, but I haven't never tried to launch mpc_ros on arm architecture. I checked the error log you uploaded: "failed to path generation". The meaning is that it can't make the path since too short distance. Could you check the "mpc_reference" topic visualization on Rviz and decrease the "path_length" param value?

Hello, I tried to reduce the path_length, but it still didn't work. The error is as follows.

[zrd1234]

If you solved this issue, please close the issue.

Hello, could you please help me check the problem when you have time? Thank you very much. I really need this method to apply to my robot.

[Geonhee-LEE]

If you solved this issue, please close the issue.

Hello, could you please help me check the problem when you have time? Thank you very much. I really need this method to apply to my robot.

Hi, it is hard to guess what reason occurs according to screenshot. Could you add some logs on c++ files and check again which code has the problem?

[zrd1234]

If you solved this issue, please close the issue.

Hello, could you please help me check the problem when you have time? Thank you very much. I really need this method to apply to my robot.

Hi, it is hard to guess what reason occurs according to screenshot. Could you add some logs on c++ files and check again which code has the problem?

Hello, may I ask how to operate, this aspect is not very clear.

[Geonhee-LEE]

Hi, @zrd1234 . you can try to add some codes such as ROS_INFO, ROS_WARN on c++ file which you launched and re-launch after catkin_make build.

[zrd1234]

Hi, @zrd1234 . you can try to add some codes such as ROS_INFO, ROS_WARN on c++ file which you launched and re-launch after catkin_make build.

Hello, run ref_trajectory_tracking_gazebo. Launch, whether MPC. CPP and trackRefTraijnode CPP file to run. rosinfo, these display messages, just to see which one will crash the program?

[zrd1234]

Hello, I've been trying all this time, but I still can't solve it. Then I changed the mpc to pure_pursuit, but I couldn't move it, as shown in the screenshot below.

[zrd1234]

Hello, could you please help me check the problem when you have time? Thank you very much. I really need this method to apply to my robot.

[Geonhee-LEE]

Hi, @zrd1234 . Would you attach the rqt_graph?? I can't seize your situation exactly. Please upload it. The later screen-capture image show the "map" passed to ... that means didn't realize the total relationship for TF. It can't be seem to be mpc_ros problem I think

[zrd1234]

Hi, @zrd1234 . Would you attach the rqt_graph?? I can't seize your situation exactly. Please upload it. The later screen-capture image show the "map" passed to ... that means didn't realize the total relationship for TF. It can't be seem to be mpc_ros problem I think

Hello, I re-downloaded and ran the code. I'm running a roslaunch mpc_ros ref_trajectory_tracking_gazebo. Launch The situation is as follows:

[Resister1]

Hi, @zrd1234. Would you explain for more detailed information?? For examples, executed launch file and dependencies.

After I compile the program in the NX trajectory_tracking_gazebo.launch file, everything else runs, but when the model is going to move, the process is reported to die. When I run roslaunch mpc_ros nav_gazebo.launch, everything works fine, but when I give it a target point, the process dies. Thank you for your reply. Thank you.

Hello, I have the same question, have you solved this issue?

[Resister1]

方便加个微信吗？想请教一下你

[Resister1]

Hi, @zrd1234. Would you explain for more detailed information?? For examples, executed launch file and dependencies.

After I compile the program in the NX trajectory_tracking_gazebo.launch file, everything else runs, but when the model is going to move, the process is reported to die. When I run roslaunch mpc_ros nav_gazebo.launch, everything works fine, but when I give it a target point, the process dies. Thank you for your reply. Thank you.

Hello, I have the same question, have you solved this issue?

方便加个微信吗？想请教一下你

[Geonhee-LEE]

Hi, @zrd1234 and @Resister1. Could you check the issue(#37)? I just updated the melodic branch for solving setPlan bug.

[zrd1234]

Hi, @zrd1234 and @Resister1. Could you check the issue(#37)? I just updated the melodic branch for solving setPlan bug. Hello, still can't solve this problem. There's something wrong with the generating path. Can you help me? I need this program very much.

[zrd1234]

Hi, @zrd1234 and @Resister1. Could you check the issue(#37)? I just updated the melodic branch for solving setPlan bug.

Hi, I've detected a problem. In the trackRefTraj.cpp file, around line 377: solve the problem, there is an error in this place, which leads to the process die. Do you have any suggestions?

[Resister1]

Hi, @zrd1234 and @Resister1. Could you check the issue(#37)? I just updated the melodic branch for solving setPlan bug.

well, I just updated the melodic branch but it doesn't work. Also, I want to ask if this code can adapt to the ROS-noetic/Ubuntu 20.04.

[Geonhee-LEE]

Hi, @zrd1234 and @Resister1. Could you check the issue(#37)? I just updated the melodic branch for solving setPlan bug.

Hi, I've detected a problem. In the trackRefTraj.cpp file, around line 377: solve the problem, there is an error in this place, which leads to the process die. Do you have any suggestions?

It seems like Ipopt solver problem. Did you install coin-or Ipopt completely?

[zrd1234]

t seems like Ipopt solver problem. Did you install coin-or Ipopt completely?

I have only installed ipopt, do I need to install anything else? When I run nav_gazebo.launch, I switch mpc to pursuit.

[Resister1]

Dear Sir ,I would like to ask that when I use the global planner you designed as a plugin to the "move_base" of the nav_gazebo.launch file, if I give a target destination in Rviz, it doesn't produce a global path after I choose the corresponding the global planner topic. I am looking forward to your prompt reply. Thank you

[Resister1]

Also, I would like to ask that what is the algorithm type in your global planner.