Rufio's profile - activity

thanks for the answer. I want to do it without using roslaunch because i have some unresolved problems with roslaunch (i will edit that in the title) by using

gdb binary

i was not able to add some breakpoints and so on.

Hi,

in my project i built several executables with catkin_make and i want to debug it (e.g. with gdb). Usually when building with gcc one can just add the the argument -g. Is there similar why for catkin such that i can debug the executables afterwards with gdb and without using roslaunch?

I have tried starting gdb directly with the executable but it says no debugging symbols found.

I have also tried to do set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -std=c++11 -march=native" ) without success.

I haven't found anything regarding this on the internet so far. Thanks for helping

Hi,

When starting my node "test_node" from the package "test_pck" with rosrun, everything works fine. Now i have written following launchfile named test.launch which i have placed in src/launch/

<launch>
<group ns="test">
  <node pkg="test_pck" name="test_name" type="test_node"/>
</group>
</launch>

however if i run "roslaunch test_pck test.launch" i gett following error in the terminal:

Traceback (most recent call last):
File "/opt/ros/indigo/bin/roslaunch", line 34, in <module>
import roslaunch
File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/__init__.py", line 61, in <module>
from .scriptapi import ROSLaunch
File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/scriptapi.py", line 42, in <module>
import roslaunch.parent
File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 54, in <module>
import roslaunch.server
File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/server.py", line 78, in <module>
from rosgraph_msgs.msg import Log
File "/opt/ros/indigo/lib/python2.7/dist-packages/rosgraph_msgs/msg/__init__.py", line 2, in <module>
from ._Log import *
File "/opt/ros/indigo/lib/python2.7/dist-packages/rosgraph_msgs/msg/_Log.py", line 7, in <module>
import std_msgs.msg
ImportError: No module named msg

The terminal output of rospack find std_msgs is /opt/ros/indigo/share/std_msgs

I have absolutely now clue what i can do in order to solve this problem. Thank you for every hint!

Hi William,

thank you for the answer. It is very strange: when i do "catkin_make" with ubuntu on my virtual machine, it works without any error :). So it must be anything with my system. Unfortunately it is a project from my university and i most probably are not allowed to share any files :(. Could it be that it is an error which arise only for mac osx (10.10)?

Hi,

i am struggling the last few days and tried many things out which i've found on the web. My problem is to build with catkin_make. I am quite new to all this stuff and have absolutely no clue what to do. Would be very happy if anybody can help me.

i get following error

Undefined symbols for architecture x86_64:
"dircol<Dimensions<10ul, 3ul> >::setFinalState(Eigen::Matrix<double, 10, 1, 0, 10, 1>)", referenced from:
  _main in dircol_rezero_ipopt.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [/Users/lukasmoller/catkin_ws/devel/lib/dircol/dircol_rezero_ipopt] Error 1
make[2]: *** [CMakeFiles/dircol_rezero_ipopt.dir/all] Error 2
make[1]: *** [CMakeFiles/dircol_rezero_ipopt.dir/rule] Error 2
make: *** [dircol_rezero_ipopt] Error 2
Invoking "make" failed

Thanks very much