Hello LAVA Users,

I want to install LAVA version 2017.6 or 2017.7 on debian-9 (Stretch), I followed the instruction given on 
https://staging.validation.linaro.org/static/docs/v2/installing_on_debian.html#debian-installation


For this I added production repo in my sources.list file, the content of my sources.list is given below.

deb http://ftp.us.debian.org/debian/ stretch main
deb-src http://ftp.us.debian.org/debian/ stretch main

deb http://security.debian.org/debian-security stretch/updates main
deb-src http://security.debian.org/debian-security stretch/updates main

deb http://ftp.us.debian.org/debian/ stretch-updates main
deb-src http://ftp.us.debian.org/debian/ stretch-updates main

deb http://ftp.fr.debian.org/debian stretch-backports main

deb https://images.validation.linaro.org/production-repo sid main



After this I run "apt-get update" & "apt-get install lava-server", This command is given me error as given below.

root@debian:/home/debian# apt-get install lava-server
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:
 lava-server : Depends: lava-dispatcher (>= 2017.5) but it is not going to be installed
               Recommends: lava-coordinator but it is not going to be installed
               Recommends: lava-server-doc but it is not going to be installed
E: Unable to correct problems, you have held broken packages.


I tried staging repo as well and also jassie-backports but couldn't proceed, Please anyone have some ide what going wrong in my case and how I can resolve this issue. 

My main objective is to install LAVA 2017.6/2017.7 on my debian stretch.



Thanks,
Ankit