Is that because ROS fuerte doesn't support Ubuntu 16.04 now?
Exactly. Both the installation instructions as well as REP-003 - Target Platforms list the following as supported Ubuntu versions for Fuerte:
- Ubuntu Lucid (10.04 LTS)
- Ubuntu Oneiric (11.10)
- Ubuntu Precise (12.04 LTS)
Xenial (16.04) is not supported.
What is the lastest version of Ubuntu I can use now?
If you need Fuerte, then 12.04 would be the latest you can use.
Note that Fuerte has long been EOL-ed already, and is not recommended for new users. Perhaps if you can tell us why you want to install Fuerte, we can see whether there is a work-around (or if it's even really necessary).
Btw, this question has been asked a few times already, see Is it possible to use Fuerte on 14.04? and ROS on Ubuntu Xenial (16.04) fi.
Edit:
I am trying to use ORB-SLAM, and it relies on ROS Fuerte, Groovy and Hydro or ROS Indigo. So which version of ROS would you suggest
None of the compatible versions listed there are available for Ubuntu Xenial. ROS Indigo runs on Ubuntu Trusty (14.04) only (Wily is also supported, but that is already EOL).
You have two options:
- try to build the package in a catkin workspace on a ROS Kinetic installation: ROS Kinetic is the only ROS release available for Ubuntu Xenial, but since
ORB_SLAM is buildable on Indigo, it might work on Kinetic as well. A quick look at the issue tracker shows that other users have already tried (see raulmur/ORB_SLAM#119 fi). - install Ubuntu Trusty (14.04) and ROS Indigo. The package is supposed to work on that release, so (besides the OS downgrade), this would seem to be the easiest.
