Ros2 install / Unable to locate package

edit

Hi together,

I have some trouble installing ROS2 on Lubuntu 18.04 on a Asus Think Board. I tried the installation manual at https://index.ros.org/doc/ros2/Instal... for crystal and also for dashing. Both of them don't work for me and I get

E: Unable to locate package ros-crystal-ros-base

Here is my Terminal in-&output:

tinker@ELAR-Systems:~$ sudo locale-gen en_US en_US.UTF-8
[sudo] password for tinker: 
tSorry, try again.
[sudo] password for tinker: 
Generating locales (this might take a while)...
  en_US.ISO-8859-1... done
  en_US.UTF-8... done
Generation complete.

tinker@ELAR-Systems:~$ sudo apt update && sudo apt install curl gnupg2 lsb-release
Hit:1 http://ports.ubuntu.com/ubuntu-ports bionic InRelease
Reading package lists... Done
Building dependency tree       
Reading state information... Done
1 package can be upgraded. Run 'apt list --upgradable' to see it.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
lsb-release is already the newest version (9.20170808ubuntu1).
The following NEW packages will be installed:
  curl gnupg2 libcurl4
0 upgraded, 3 newly installed, 0 to remove and 1 not upgraded.
Need to get 341 kB of archives.
After this operation, 831 kB of additional disk space will be used.
Get:1 http://ports.ubuntu.com/ubuntu-ports bionic/main armhf libcurl4 armhf 7.58.0-2ubuntu3 [183 kB]
Get:2 http://ports.ubuntu.com/ubuntu-ports bionic/main armhf curl armhf 7.58.0-2ubuntu3 [152 kB]
Get:3 http://ports.ubuntu.com/ubuntu-ports bionic/universe armhf gnupg2 all 2.2.4-1ubuntu1 [4,984 B]
Fetched 341 kB in 1s (582 kB/s)   
Selecting previously unselected package libcurl4:armhf.
(Reading database ... 100850 files and directories currently installed.)
Preparing to unpack .../libcurl4_7.58.0-2ubuntu3_armhf.deb ...
Unpacking libcurl4:armhf (7.58.0-2ubuntu3) ...
Selecting previously unselected package curl.
Preparing to unpack .../curl_7.58.0-2ubuntu3_armhf.deb ...
Unpacking curl (7.58.0-2ubuntu3) ...
Selecting previously unselected package gnupg2.
Preparing to unpack .../gnupg2_2.2.4-1ubuntu1_all.deb ...
Unpacking gnupg2 (2.2.4-1ubuntu1) ...
Setting up libcurl4:armhf (7.58.0-2ubuntu3) ...
Setting up gnupg2 (2.2.4-1ubuntu1) ...
Processing triggers for libc-bin (2.27-3ubuntu1) ...
Processing triggers for man-db (2.8.3-2) ...
Setting up curl (7.58.0-2ubuntu3) ...

tinker@ELAR-Systems:~$ curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc | sudo apt-key add -
OK

tinker@ELAR-Systems:~$ sudo sh -c 'echo "deb [arch=amd64,arm64] http://packages.ros.org/ros2/ubuntu `lsb_release -cs` main" > /etc/apt/sources.list.d/ros2-latest.list'

tinker@ELAR-Systems:~$ export CHOOSE_ROS_DISTRO=crystal

tinker@ELAR-Systems:~$ sudo apt update
Hit:1 http://ports.ubuntu.com/ubuntu-ports bionic InRelease
Get:2 http://packages.ros.org/ros2/ubuntu bionic InRelease [3,209 B]
Get:3 http://packages.ros.org/ros2/ubuntu bionic/main amd64 Packages [344 kB]
Get:4 http://packages.ros.org/ros2/ubuntu bionic/main arm64 Packages [331 kB]
Fetched 679 kB in 2s (286 kB/s)   
Reading package lists... Done
Building dependency tree       
Reading state information... Done
1 package can be upgraded. Run 'apt list --upgradable' to see it.

tinker@ELAR-Systems:~$ sudo apt install ros-$CHOOSE_ROS_DISTRO-desktop
Reading package lists... Done
Building dependency tree       
Reading state information ...