ROS_ROOT Problem

asked Feb 21 '11

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alfa_80
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Hi,

I accidentally tweaked something "export ROS_ROOT=$PWD:$ROS_ROOT" into several directories, into /diamondback and /unstable directories. Where should it be located? I mean a standard ROS_ROOT. BTW, I want to point to the diamondback instead of unstable. Hopefully someone could guide me..

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Please don't put [SOLVED] in the title. Also, don't mark every question as a community wiki, there is no reason for that. mjcarroll (Feb 21 '11)edit

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If the issue is solved, mark one (can be your own) of the answers "the-best-one", for the question not to appear unanswered any more, please. Glad you made it :). tom (Feb 21 '11)edit

How to mark it? is it by clicking thumbs up? alfa_80 (Feb 21 '11)edit

There should be a check mark under the thumbs up/thumbs down. mjcarroll (Feb 21 '11)edit

Unfortunately, I could not tick my because it was complaining "Sorry, you cannot vote for your own post". I just wrote as [SOLVED] in the title, instead .. alfa_80 (Feb 21 '11)edit

Please try again. Not the thumbs up, but the check mark. This question still shows up as "unanswered", wasting people's time. joq (Feb 21 '11)edit

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I got this output: shah@shah-laptop:~$ roscd [rospack] the path specified as ROS_ROOT is not accessible. Please ensure that this environment variable is set and is writeable by your user account. [rospack] no ROS_ROOT [rospack] the path specified as ROS_ROOT is not accessible. Please ensure that this environment variable is set and is writeable by your user account. [rosstack] no ROS_ROOT, how to recover the ROS_ROOT, then since the "source /opt/ros/diamondback/setup.bash" line is already in the ~/.bashrc. alfa_80 (Feb 21 '11)edit

I built Diamondback from source, so I don't have it installed under /opt/ros/diamondback but in my homedir. I'd assume, you can find a file /opt/ros/diamondback/setup.sh on you computer. ROS_ROOT should point to the directory under which the core package resides (probably /opt/ros/diamondback/ros) tom (Feb 21 '11)edit

I still do not know how to go about this..huhu alfa_80 (Feb 21 '11)edit

I got what you mean. I've tried to run "roswtf" and it show that my ROS system is still problematic. Here is the error found: shah@shah-laptop:/opt/ros/diamondback/ros$ export ROS_ROOT=$PWD:$ROS_ROOT shah@shah-laptop:/opt/ros/diamondback/ros$ cd shah@shah-laptop:~$ roscd bash: cd: /opt/ros/diamondback/ros:/opt/ros/diamondback/ros:/opt/ros/diamondback:/opt/ros/diamondback/ros:/opt/ros:/opt/ros/unstable:/opt/ros:/opt/ros/diamondback:/opt/ros/unstable/ros: No such file or directory shah@shah-laptop:~$ roswtf Traceback (most recent call last): File "/opt/ros/unstable/ros/bin/roswtf", line 34, in <module> from ros import roswtf File "/opt/ros/unstable/ros/core/roslib/src/ros/__init__.py", line 56, in __getattr__ raise ImportError("Cannot import module '%s': \n%s"%(name, str(e))) ImportError: Cannot import module 'roswtf': Environment configuration is invalid: cannot locate rospack ([Errno 2] No such file or directory) alfa_80 (Feb 21 '11)edit

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