Trying to do sudo rosdep init and getting the below error

asked 2020-02-10 10:59:25 -0500

srujan
32 ●7 ●16 ●13

updated 2022-01-22 16:10:19 -0500

Evgeny
26 ●6

Following the tutorial http://wiki.ros.org/melodic/Installat... to install ROS Melodic I'm using Ubuntu 18.04 on x86_64. I had Ubuntu 16.04 with ROS Kinetic previously. I removed ROS Kinetic from Ubuntu 16.04. Upgraded from Ubuntu 16.04 to Ubuntu 18.04 and then trying to install ROS melodic.

Error:

sudo: unable to execute /usr/local/bin/rosdep: No such file or directory

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answered 2020-02-12 21:54:02 -0500

srujan
32 ●7 ●16 ●13

updated 2020-02-12 21:57:04 -0500

The fix was very simple, I went to the /usr/local/bin and removed everything related to ROS and Catkin. That resolved my issue. The next time when I installed ros-melodic and did rosdep init, I saw the rosdep files in usr/bin/ and everything worked smooth from there.

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answered 2020-02-10 13:59:36 -0500

tfoote

58457 ●128 ●550 ●526 http://www.ros.org/

The version of rosdep that comes from the debian packages should be in /usr/bin not /usr/local/bin

I'd hazard a guess that you had a from source or from pip installation on your system at some point previously. During your upgrade you removed it, but there's still a reference to it on your path.

You might have an alias or other thing in your users' or root's .bashrc or other environment setup that needs to be cleaned up. Or you might have a redirection script somewhere that's out of date.

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I have definitely used pip installation previously. I also had anaconda3 which was redirecting the python to a different location, hence I removed anaconda3 completely. Now, I removed the melodic and its dependencies and reinstalled melodic again. Still I get the same error. Can you show me a direction where those redirection scripts could be?

Thank you

srujan ( 2020-02-10 17:43:10 -0500 )edit

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Unfortunately I don't know what you've done on your system to cause it to look in that location. My best guesses are above to look for aliases in your bash settings. Reinstalling melodic isn't going to make a difference if your environment is pointing to the wrong place. It sounds like you've used a bunch of tools that change your environment like anaconda so you'll need to figure out which ones failed to wind back successfully.

tfoote ( 2020-02-10 17:52:18 -0500 )edit

Thanks for your suggestion. I made sure rosdep is in the /usr/bin

srujan ( 2020-02-12 21:55:17 -0500 )edit

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answered 2020-02-11 02:32:01 -0500

SSar
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My best guess is that you could try sudo apt-get purge python-rosdep which removes rosdep completely. Then you could try reinstalling with sudo apt install python-rosdep(source here).

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Thanks for your suggestion. I tried doing that but it didn't help me.

srujan ( 2020-02-12 21:54:17 -0500 )edit

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Trying to do sudo rosdep init and getting the below error

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