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



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