Problem with dependencies when installing ros-noetic

asked 2021-06-07 13:46:23 -0500

regoGr
11 ●3 ●6 ●8

I remove ROS noetic and now I'm trying to reinstall ros-noetic on Ubuntu 20.04. I followed instructions in tutorial: http://wiki.ros.org/noetic/Installati... When I did it, I receive this error:

The following packages have unmet dependencies: ros-noetic-desktop-full:
Depends: ros-noetic-common-tutorials but it is not going to be installed
Depends: ros-noetic-joint-state-publisher-gui but it is not going to be installed
Depends: ros-noetic-robot but it is not going to be installed
Depends: ros-noetic-ros-tutorials but it is not going to be installed
Depends: ros-noetic-urdf-tutorial but it is not going to be installed Depends: ros-noetic-visualization-tutorials but it is not going to be installed
Depends: ros-noetic-viz but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

I tried to find solution and looked here and here, but it didn't work. What did I do wrong?

Comments

but it didn't work

What does this mean? What happened?

jayess ( 2021-06-07 16:09:15 -0500 )edit

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answered 2021-06-08 02:53:00 -0500

Gates
68 ●13 ●18 ●22

It simply means that there are some packages which are not installed.

One way is to install packages manually deeper and deeper. Let say, don't install ros-noetic-desktop-full first but install ros-noetic-visualization-tutorials first, then ros-noetic-ros-tutorials, then ros-noetic-urdf-tutorial etc.

If you cannot install these, the problem might be about setting the keys. Have you computed this: sudo apt-key adv --keyserver 'hkp://keyserver.ubuntu.com:80' --recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654 ? and then sudo apt update.

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Comments

Yes, I did all of instructions. I computed key and made update. When I tried to install packages manually I received more and more packages which cannot install. Do you thing what the problem is due to one packages? When I deleted ROS I did autoremove. May be some important dependencies was deleted?

regoGr ( 2021-06-08 04:32:31 -0500 )edit

After entering its product it showed: Executing: /tmp/apt-key-gpghome.2rzZXNEMFZ/gpg.1.sh –keyserver hkp://keyserver.ubuntu.com:80 –recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654
gpg: key F42ED6FBAB17C654: “Open Robotics info@osrfoundation.org” not changed
gpg: Total number processed: 1
gpg: unchanged: 1

May be it is due I did it yesterday.

regoGr ( 2021-06-08 04:52:25 -0500 )edit

Have you tried sudo apt update and sudo apt upgrade (both) after setting the key? Then try to sudo aptitude install ros-noetic-desktop-full