[Qgis-user] QGIS 2.18.2 can not see GRASS data / use GRASS algorithms

[Robert Nuske]

Dear List

I can not see/load my GRASS data from within QGIS anymore and can not use the 
GRASS algorithms offered in the Processing Toolbox (GRASS GIS 7 commands are 
activated in the Processing options).

Trying to run v.info from the Toolbox I get the following error message:
---
This algorithm cannot be run :-( 
It seems that GRASS GIS 7 is not correctly installed and configured in your 
system. Please install it before running GRASS GIS 7 algorithms.
---

Starting QGIS on the command line does not produce suspicious output:
---
$ qgis
Warning: loading of qgis translation failed [/usr/share/qgis/i18n//qgis_en_US]
Warning: loading of qt translation failed [/usr/share/qt4/translations/
qt_en_US]
Warning: QCss::Parser - Failed to load file  "/style.qss" 
Warning: QLayout: Attempting to add QLayout "" to QgsPanelWidgetStack 
"mWidgetStack", which already has a layout
---

QGIS 2.18.2  was installed this week on a new computer running kubuntu 16.04.1 
(xenial) amd64 using the following repositories
  deb http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu xenial main
  deb http://qgis.org/ubuntugis xenial main
Please see below for a list of qgis related installed packages.


Do I use the wrong repositories or does anything else need to be configured?

Any hints are more than welcome.

Thanks 
  Robert

-----------------------------------------------------------

$ dpkg -s qgis
Package: qgis
Status: install ok installed
Priority: optional
Section: science
Installed-Size: 18417
Maintainer: QGIS developers <qgis-developer at lists.osgeo.org>
Architecture: amd64
Version: 1:2.18.2+24xenial-ubuntugis

$ dpkg -s grass
Package: grass
Status: install ok installed
Priority: optional
Section: metapackages
Installed-Size: 35
Maintainer: Debian GIS Project <pkg-grass-devel at lists.alioth.debian.org>
Architecture: all
Version: 7.2.0-1~xenial2


$ aptitude search qgis | grep ^i
i A libqgis-analysis2.18.2          - QGIS - shared analysis library            
i A libqgis-app2.18.2               - QGIS - shared app library                 
i A libqgis-core2.18.2              - QGIS - shared core library                
i A libqgis-customwidgets           - QGIS custom widgets for Qt Designer       
i A libqgis-gui2.18.2               - QGIS - shared gui library                 
i A libqgis-networkanalysis2.18.2   - QGIS - shared network analysis library    
i A libqgis-server2.18.2            - QGIS - shared server library              
i A libqgisgrass7-2.18.2            - QGIS - shared grass library               
i A libqgispython2.18.2             - QGIS - shared Python library              
i A python-qgis                     - Python bindings to QGIS                   
i A python-qgis-common              - Python bindings to QGIS - architecture
i   qgis                            - Geografisches Informationssystem (GIS)    
i A qgis-common                     - QGIS - architecture-independent data      
i A qgis-plugin-globe               - OSG globe plugin for QGIS                 
i A qgis-plugin-globe-common        - OSG globe plugin for QGIS - arch
i A qgis-plugin-grass               - GRASS plugin for QGIS                     
i A qgis-plugin-grass-common        - GRASS plugin for QGIS - architecture
i A qgis-provider-grass             - GRASS provider for QGIS                   
i A qgis-providers                  - collection of data providers to QGIS      
i A qgis-providers-common           - collection of data providers to QGIS 


$ aptitude search grass | grep ^i
i   grass                           - Geographic Resources Analysis Support 
i A grass-core                      - GRASS-GIS-Kernkomponenten                 
i A grass-doc                       - GRASS GIS user documentation              
i A grass-gui                       - GRASS GIS graphical user interfaces       
i A libqgisgrass7-2.18.2            - QGIS - shared grass library               
i A qgis-plugin-grass               - GRASS plugin for QGIS                     
i A qgis-plugin-grass-common        - GRASS plugin for QGIS - architecture-
i A qgis-provider-grass             - GRASS provider for QGIS