ERROR with sudo apt install catkin

[YibinWu]

Hi @jbehley , I got an issue when I try to install catkin as you suggested. I did "source /opt/ros/noetic/setup.bash" beforehand.

(base) yibin@dell:~/code/point_labeler$ sudo apt install catkin
[sudo] password for yibin: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 catkin : Depends: python3-catkin-pkg (>= 0.4.14-2) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

However, I already have the newest python3-catkin-pkg installed.

(base) yibin@dell:~/code/point_labeler$ dpkg -l | grep catkin
ii  python3-catkin-pkg                          0.5.2-100                           all          catkin package library
ii  python3-catkin-pkg-modules                  0.5.2-1                             all          catkin package library
ii  ros-noetic-catkin                           0.8.10-1focal.20210423.221558       amd64        Low-level build system macros and infrastructure for ROS.

My OS is Ubuntu 20.04, ROS distro is noetic. Other functions, like catkin_make, work well. Do you have any suggestions for this issue?

[jbehley]

I haven't recently installed the point labeler in ubuntu 20.04. However, I usually have not ROS installed. Have you tried to simply run the steps with the installed catkin, e.g., catkin init, etc.?

[YibinWu]

Hi, thanks for replying. It has been solved by installing python3-catkin.