Linux install of SDK fails

[_rob_]

Hi,

Prior to purchasing a leap motion controller I am trying to install the software provided,
on my linux system; I have Ubuntu studio 16.04 LTS, installed.

I went to this page https://developer.leapmotion.com/v2 and downloaded Leap_Motion_Setup_Linux_2.3.1.tgz

install attempt

$ sudo apt-get install ./Leap*x64.deb
...
Failed to start leapd.service: Unit leapd.service not found.
'''
Plus I get warning telling me to uninstall.

Forum search

From June 2015:

Putting this here for reference: the method in the first reply works, but it puts unmanaged files in your system directories. With a few commands, you can hack the .deb to install the systemd-related files in a way they'll be cleaned up if you uninstall or update the package. I did all this for Ubuntu 15.04 and version 2.3.1 of the Leap Motion software ... anything else and you're on your own. Download the .tgz file from https://www.leapmotion.com/setup, extract, and download the patch file t…

This looks to be the same issue as I have, so I conclude the problem is my distro uses
'systemd and this .deb is still set up for upstart'.

I google about and find this a contentious issue, but that sytemd is has been the choice of all mainstream
linux distros since ~2014.

the fix

The post gives a link to a fix that patches the deb file. I do this
But when I attempt to install with:
sudo apt-get install ./leap.deb
I get:
...
Failed to execute operation: Too many levels of symbolic links
...

What do I do?

To be able to fix this myself I need to take time to learn about what systemd is, what the patch did etc. But maybe I am getting everything wrong here, so during the mean time I thought I check to see if I am on track or not.

Thanks,

Rob.

[chop]

On Ubuntu 12.04 worked just fine for me.

[f559958]

same issue with my 16.04:

root@home:/home/hometst/Téléchargements/LeapDeveloperKit_2.1.3+21998_linux# dpkg -i

Leap-2.1.3+21998-x64.deb

Sélection du paquet leap précédemment désélectionné.
(Lecture de la base de données... 291727 fichiers et répertoires déjà installés.)
Préparation du dépaquetage de Leap-2.1.3+21998-x64.deb ...
Dépaquetage de leap (2.1.3+21998) ...
Paramétrage de leap (2.1.3+21998) ...
Leap Motion installed under /usr/bin and /usr/sbin
Failed to start leapd.service: Unit leapd.service not found.
dpkg: erreur de traitement du paquet leap (--install) :
le sous-processus script post-installation installé a retourné une erreur de sortie d'état 5
Traitement des actions différées (« triggers ») pour ureadahead (0.100.0-19) ...
Des erreurs ont été rencontrées pendant l'exécution :
leap

[Akishin]

If you still have a problem installing Leap software in Linux, please try to follow my tutorial below (and if some step will not work for you, feel free to comment, I will try to help).

Leap Motion SDK with Python 3.5 in Linux (tutorial)

Recently, old similar tutorial (http://www.warp1337.com/content/leap-motion-sdk-python3-python-33-ubuntu) became offline and it was pretty outdated anyway. But people need new tutorial, so I decided to write one. This should work in Debian and Ubuntu/Kubuntu 16. Other distros may have different package manager and/or package names but the rest should be same. First, download latest version of Leap Motion software for Linux (2.3.1+33747). It still not released officially yet but only available …

[psridhar]

What is the solution for this?

[imerso]

Hi guys,

I had exactly the same problem as you, and the patch did not work for me as well.

I found a solution that worked for me (please also finish reading my answer) here: https://community.leapmotion.com/t/tip-ubuntu-systemd-and-leapd/2118

What happens is that on newer Linux with systemd, we need a new file created (as pointed out in the post above).

What I did to properly install the original deb file:

1 - After the install failure, I simply uninstalled with:

sudo dpkg -r leap

2 - Now, with no leap installed yet, I followed the post above and just created the file as mentioned there (I used the terminal to write the following command, to use the nano text editor as root user):

sudo nano /lib/systemd/system/leapd.service

3 - I pasted that content (reproduced here for easiness):
(also please note that on Ubuntu terminal, you paste with CTRL+SHIFT+V instead of just CTRL+V)

# Found by Kevin Cole 2014.11.22 at
# https://github.com/atejeda/leap-fedora-rpm
#
# Remember to:
#
#   ln -s /lib/systemd/system/leapd.service /etc/systemd/system/leapd.service
#   systemctl daemon-reload
#
[Unit]
Description=LeapMotion Daemon
After=syslog.target
[Service]
Type=simple
ExecStart=/usr/sbin/leapd
[Install]
WantedBy=multi-user.target

4 - Saved (CTRL+O then ENTER), and exited (CTRL+X)

5 - Still using the terminal, executed the two commands from that same post, BUT I included the sudo prefix to run them as root user:

sudo ln -s /lib/systemd/system/leapd.service /etc/systemd/system/leapd.service
sudo systemctl daemon-reload

6 - All is right now and we can properly install. So, I just installed the original package:as in the official Leap guide:

sudo dpkg --install Leap-2.3.1+31549-x64.deb

(please just note that I'm using a x64 Ubuntu, so I installed the 64 bits package)

7 - Done!!!

Main credits go to Ubuntourist of course, I am just detailing to make it easier for more people.

Hope this helps everyone, good luck.

[stevensu1838]

Hey Man,
When I input
sudo systemctl daemon-reload

in the terminal, it comes out

mr-robot@ubuntu:~/Downloads/LeapDeveloperKit_2.3.1+31549_linux$ systemctl daemon-reload
systemctl: command not found

Have you had the same issue? Do you know how to solve it

[imerso]

A reboot should have the same effect, as daemon-reload will just reload the leap daemon anyway. Good luck!

[juantelo95]

Hey guys, I tried your fix and still couldn't use Leapd. When i try to call it in terminal this erros shows up:

training-parameters/hmd/* is missing.