install qgis on debian jessie
<p>I need to install qgis, qgis server, and lizmap on Debian jessie, and I can not install them. Currently my sources.list is as follows</p>

<p><a href="http://i.stack.imgur.com/48W3h.jpg" rel="nofollow">enter image description here</a></p>

<p>debian version installed:</p>

<pre><code>root@SIG:~# cat /etc/debian_version
stretch/sid
</code></pre>

<p>Firstly, the system was wheezy (7.3) According to our needs, I must make the upgrade the server to jessie.</p>

<p>here is my screen snapshot when I type on putty:</p>

<pre><code>root@SIG:~# apt-get install qgis python-qgis qgis-plugin-grass
</code></pre>

<p>I  receive the following error messages</p>

<p><a href="http://i.stack.imgur.com/moDGm.jpg" rel="nofollow">enter image description here</a></p>

<p>And I followed to apt-get -f install but the problem still resists.</p>

<p>I do not know; is it possible of the internet connection a bit slow? Because our internet connection is not famous</p>

<p>Desolated, we used the French language in our system</p>

<p>It seems that you're missing some dependencies. Try the following using root mode, or sudo if you wish. </p>

<pre><code>apt-get install -f
</code></pre>

<p>then,</p>

<pre><code>apt-get install qgis python-qgis qgis-plugin-grass
</code></pre>

python qgis