[Ubuntu] How to fix the unmet dependencies for grass-gui ?

[Carlos Cerdán]

Hi Luis

I had the same trouble. What I did to fix it was, under Synaptic:

1. Uninstall completly QGIS and GRASS, and all related packets (Don't
worry, pluggins and configuration won't be deleted, they are at your home
directory).

2. Delete the Ubuntugis repository (In Synaptic, Spanish menu:
Configuracion --> Respositorios --> Otro software)

3. Add the Stable Repository: Go to the QGIS download page and follow the
instructions. For Ubuntu 14.04 we need to add:

deb     http://qgis.org/debian trusty main
deb-src http://qgis.org/debian trusty main

4. Reload software origins.

5. Install QGIS, GRASS and their packets. All must be working fine again,
with GRASS 6.4

Best whishes from Perú

Carlos Cerdán

2015-03-21 6:05 GMT-05:00 Luís de Sousa <luis.a.de.sousa at gmail.com>:

> Dear all,
>
> I have the ubuntugis-unstable PPA registered in my sources.list
> (Ubuntu 14.04). Two days ago an automatic system update tried to
> install the new grass 7 meta-package, which failed due to unmet
> dependencies. Right now I have different versions of grass-core and
> grass-gui installed and grass fails to start.
>
> Apt reports the following:
>
> $ sudo apt-get build-dep grass-gui
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> Picking 'grass' as source package instead of 'grass-gui'
> Note, selecting 'libtiff5-dev' instead of 'libtiff-dev'
> The following packages have unmet dependencies.
>  libcairo2-dev : Depends: libcairo2 (= 1.13.0~20140204-0ubuntu1) but
> 1.13.0~20140204-0ubuntu1.1 is to be installed
>                  Depends: libcairo-gobject2 (=
> 1.13.0~20140204-0ubuntu1) but 1.13.0~20140204-0ubuntu1.1 is to be
> installed
>                  Depends: libfontconfig1-dev (>= 2.2.95) but it is not
> going to be installed
>                  Depends: libglib2.0-dev but it is not going to be
> installed
>  libproj-dev : Depends: libproj0 (= 4.8.0-2ubuntu2) but 4.8.0-4~saucy2
> is to be installed
> E: Build-dependencies for grass-gui could not be satisfied.
>
> I have tried the basic tricks in the book to fix these dependencies:
> install -f, autoclean, etc, to no avail. The following step would be
> to remove the PPA altogether, which obviously I can not do because I
> need grass.
>
> Could I get these dependencies from a different PPA? Otherwise, would
> there be any other way of getting grass running again? I do not mind
> continuing to use grass 6.4.
>
> Thank you,
>
> Luís
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