Install Qgis in ubuntu 14.04

Useful links:

https://www.qgis.org/en/site/forusers/alldownloads.html

http://askubuntu.com/questions/351899/qgis-quantum-gis-install-fails-unmet-dependencies

http://blog.csdn.net/heybob/article/details/52911395

1. First remove already added repositories which you tried to install Qgis:

  • Execute this in your terminal: sudo software-properties-gtk and go to Other Softwaretab.

  • Then remove those repositories that you added using your mentioned tutorial. Find names similar to http://qgis.org/debian and ubuntugis-unstable. Close the window.

  • The execute this command in terminal to update your repository: sudo apt-get update

2. Now add the QGIS repository once again to your /etc/apt/sources.list file. Do it by following these steps:

  • Open terminal and execute:

sudo gedit /etc/apt/sources.list

  • Add following lines at the last line:

deb http://qgis.org/ubuntugis trusty main

deb http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu trusty main

  • Save the file and close the window.

  • Execute following two commands to add public key of QGIS

wget -O - http://qgis.org/downloads/qgis-2016.gpg.key | gpg --import gpg --fingerprint 073D307A618E5811

After you have verified the fingerprint you can add the key to apt with:

gpg --export --armor 073D307A618E5811 | sudo apt-key add -

  • Update repository by executing following command:

sudo apt-get update

3. Now install QGIS by following these steps:

  • First remove already installed QGIS or any residual( and broken) packages if any:

sudo apt-get autoremove sudo apt-get autoclean sudo apt-get -f install sudo apt-get autoremove qgis sudo apt-get --purge remove qgis

  • Install grass plugin:

sudo apt-get install grass sudo apt-get install qgis-plugin-grass

  • Finally install QGIS:

sudo apt-get install qgis python-qgis

when run qgis, there are some warnings; it shows no module named PyQt4.

qgis works fine now. I will update if the warning cause some problems in the future.

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