Error while installing dependencies: libabsl-dev not available

[fjs-acc]

I tried installing cartographer ros on a newly set up ubuntu system (20.04.4 LTS with ros noetic installed) and followed the following steps of the documentation:
sudo apt-get update
sudo apt-get install -y python3-wstool python3-rosdep ninja-build stow

mkdir catkin_ws
cd catkin_ws
wstool init src
wstool merge -t src https://raw.githubusercontent.com/cartographer-project/cartographer_ros/master/cartographer_ros.rosinstall
wstool update -t src

sudo rosdep init
rosdep update

Up until this point everything worked fine, but when I try the next step

rosdep install --from-paths src --ignore-src --rosdistro=${ROS_DISTRO} -y

I get the following error message:

ERROR: the following packages/stacks could not have their rosdep keys resolved to system dependencies: cartographer: [libabsl-dev] defined as "not available" for OS version [focal]

Does anyone know what is causing this issue and how I can fix it?

[uzdqm]

I am facing the exact same problem.. Would appreciate if someone know how to solve this issue

[christopherbohn]

Same issue here - ROS noetic on Ubuntu 20.04.4 LTS

[fjs-acc]

Well, as it turns out that this dependency was added to the cartographer package roughly a week ago (as can be seen here https://github.com/cartographer-project/cartographer/pull/1875); removing the respective line from the package.xml and installing abseil via the command from the guide (ie. src/cartographer/scripts/install_abseil.sh) seems to have fixed the issue, atleast in so far as it allowed me to build and install cartographer ros.

I'm not 100% sure if it fixed the issue without creating new ones though.

PS: I accidentally closed the topic instead of simply posting a comment, so I've reopened it in case anyone else wants to contribute.

[utkarsh-ctrlalt]

@fjs-acc -- I am facing the same issue. The link you have provided for pull request is not working. Can you tell me what do I need to change in the package.xml in order to install cartographer?

[joaopeixoto13]

@suaveUT Remove the line:
<depend>libabsl-dev</depend>

[fjs-acc]

@suaveUT I didn't format the link properly, put you can just copy and past the adress that's actually there to reach the issue i was trying to link to.

You have to remove (delete/comment out, whatever floats your goat) line 46 (<depend>libabsl-dev</depend>) from the package.xml file in the cartographer (not cartographer ros!) package.