[QGIS-Developer] Qgis with ubuntgis dependancy broken

[Patrick Dunford]

There is no mandated requirement to use the Ubuntugis repository for 
2.18. The latest edition of 2.18 is available from the non-ubuntugis 
Qgis repository for xenial.

Do you have that option available to you?

If you need the development edition (2.99) unfortunately the developers 
are not supporting this on Xenial because of a package dependency that 
is not supported by the Ubuntu repositories for Xenial, even though it 
should in theory be possible to get the required package(s) from another 
repository.

If you have used apt upgrade to update all the packages in your system 
at once, including new ubuntugis packages, don't update all the packages 
this way. Just update qgis by itself, and it won't pull the new 
ubuntugis packages if it doesn't need them.

The more technically astute might try commenting out the ubuntugis 
repository from apt's sources.list files or fragments before issuing the 
apt update command, or playing with Apt pinning settings to prioritise 
repositories.

Example: I installed Debian buster/testing and then attempted to install 
Qgis 2.99 sid/unstable. This told me it needed a package from Debian 
sid/unstable repositories. I changed the master repository for debian to 
unstable and then apt update tells me there are hundreds of new packages 
from unstable I could install. I only want it to install the packages 
needed for qgis so instead of running apt upgrade, I just run apt 
install qgis etc to only pull the unstable packages it actually needs 
for this installation, and then change the Debian master repository back 
to buster.

The above options may not suit every situation where ubuntugis has to be 
used, obviously it does not suit your particular requirement if you have 
to have the latest ubuntugis packages for other reasons, however it may 
resolve the situation for someone else.

On 28/11/17 02:23, Walter Lorenzetti wrote:
>
> Thanks Patrick for replay, I user ubuntugis for other project in my 
> work ..
>
> W
>
>