Cannot find workspace?

Question

I tried writing the simple publisher and subscriber using the tutorial, but seem to have some problem finding the workspace and packages using ros... I've source it like a million times.. and I still can't find it...

what am I doing wrong?? Workspace uploaded here: https://www.dropbox.com/s/ip6qm3lc40v93nz/pubsub_ws.zip?dl=0

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Originally posted by 215 on ROS Answers with karma: 156 on 2015-02-16

Post score: 0

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Original comments

Comment by gpldecha on 2015-02-16:
Can you cd to the directory of your ros-project (which is located in path/catkin_ws/src/) and try and launch the file from within it. If not to go to the location of the launch file of your project and do:$ roslaunch project.launch

Comment by marguedas on 2015-02-16:
To confirm that your workspace is successfully sourced you can run just "roscd". you should end up in the workspace/devel folder. To update the list of packages you need to run "rospack profile" Please refer to this answer for more detail

Comment by 215 on 2015-02-18:
I am able to cd it, but there is no launch file.
Roscd doesn't show the ws.

Answer 1

I downloaded your workspace. It seems that some things haven't been initialized properly. If I source it and type roscd I end up in pubsub_ws/devel. But I cannot roscd the packages. Can you run the following ?
cd ~/pubsub_ws
rm -rf build/ devel/ install/ src/CMakeLists.txt
cd src catkin_init_workspace
catkin_make
source devel/setup.bash rospack profile
roscd commands

Explaination : When I ran rospack profile I never saw yiur workspace showing in the list. So your packages were never in the $ROS_PACKAGE_PATH. To fix it you need to reinitialize your workspace. then rebuild it and update your package list (the list of commands above).Then everything should be working.

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Originally posted by marguedas with karma: 3606 on 2015-02-18

This answer was ACCEPTED on the original site

Post score: 0

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Original comments

Comment by 215 on 2015-02-18:
I keep getting these error when i create a new workspace I can't see what I am doing wrong.. Usually when i create a workspace i do this..

http://pastebin.com/2dPnwmhv

I then add my .cpp files in src directory and run catkin_make and then should rosrun be able run.. which is not the case..

Comment by marguedas on 2015-02-18:
you still cannot roscd your workspace ? can you post the output of all the commands above ? and output of pwd after running "roscd" alone ?

Comment by 215 on 2015-02-19:
no errors occurs... why can't i run rosrun....

Comment by marguedas on 2015-02-19:
If you don't give more info we can't help you... What do you mean by no error ? can you post the output of all the commands above ? and output of pwd after running "roscd" alone ?

Comment by 215 on 2015-02-19:
roscd cannot find it

Comment by marguedas on 2015-02-19:
Can you paste the output of: "rospack profile"
"echo $ROS_PACKAGE_PATH"
and "roscd" ?
Please