如何解决这个问题？
python-qgis: Depends: python-qgis-common (= 2.4.0+precise1) but 2.4.0+precise1 is to be installed
Depends: libc6 (>= 2.14) but 2.19-0ubuntu6 is to be installed
Depends: libgcc1 (>= 1:4.1.1) but 1:4.9-20140406-0ubuntu1 is to be installed
Depends: libpython2.7 (>= 2.7) but 2.7.6-8 is to be installed
Depends: libqt4-network (>= 4:4.5.3) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqt4-xml (>= 4:4.5.3) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqtcore4 (>= 4:4.8.0) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqtgui4 (>= 4:4.8.0) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libspatialite3 (>= 2.4.0~rc2) but it is not going to be installed
Depends: libsqlite3-0 (>= 3.5.9) but 3.8.2-1ubuntu2 is to be installed
Depends: libstdc++6 (>= 4.1.1) but 4.8.2-19ubuntu1 is to be installed
Depends: python (>= 2.7.1-0ubuntu2) but 2.7.5-5ubuntu3 is to be installed
Depends: sip-api-8.1 but it is not going to be installed
qgis: Depends: libc6 (>= 2.14) but 2.19-0ubuntu6 is to be installed
Depends: libgcc1 (>= 1:4.1.1) but 1:4.9-20140406-0ubuntu1 is to be installed
Depends: libgdal1-1.7.0 but it is not going to be installed
Depends: libgeos-c1 (>= 3.2.2) but 3.4.2-4ubuntu1 is to be installed
Depends: libqt4-network (>= 4:4.6.1) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqt4-sql (>= 4:4.5.3) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqt4-svg (>= 4:4.5.3) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqt4-xml (>= 4:4.5.3) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqtcore4 (>= 4:4.8.0) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqtgui4 (>= 4:4.8.0) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libspatialite3 (>= 2.4.0~rc2) but it is not going to be installed
Depends: libsqlite3-0 (>= 3.5.9) but 3.8.2-1ubuntu2 is to be installed
Depends: libstdc++6 (>= 4.4.0) but 4.8.2-19ubuntu1 is to be installed
Depends: qgis-providers (= 2.4.0+precise1) but 2.4.0+precise1 is to be installed
Depends: qgis-common (= 2.4.0+precise1) but 2.4.0+precise1 is to be installed
qgis-plugin-globe: Depends: qgis (= 2.4.0+precise1) but 2.4.0+precise1 is to be installed
Depends: qgis-plugin-globe-common (= 2.4.0+precise1) but 2.4.0+precise1 is to be installed
Depends: libc6 (>= 2.14) but 2.19-0ubuntu6 is to be installed
Depends: libgcc1 (>= 1:4.1.1) but 1:4.9-20140406-0ubuntu1 is to be installed
Depends: libopenscenegraph80 but it is not going to be installed
Depends: libosgearth1 but it is not going to be installed
Depends: libqt4-network (>= 4:4.5.3) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqt4-opengl (>= 4:4.5.3) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqtcore4 (>= 4:4.7.0~beta1) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqtgui4 (>= 4:4.7.0~beta1) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libstdc++6 (>= 4.6) but 4.8.2-19ubuntu1 is to be installed
qgis-plugin-grass: Depends: qgis (= 2.4.0+precise1) but 2.4.0+precise1 is to be installed
Depends: qgis-plugin-grass-common (= 2.4.0+precise1) but 2.4.0+precise1 is to be installed
Depends: libc6 (>= 2.15) but 2.19-0ubuntu6 is to be installed
Depends: libgcc1 (>= 1:4.1.1) but 1:4.9-20140406-0ubuntu1 is to be installed
Depends: libgdal1-1.7.0 but it is not going to be installed
Depends: libqt4-svg (>= 4:4.5.3) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqt4-xml (>= 4:4.5.3) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqtcore4 (>= 4:4.7.0~beta1) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libqtgui4 (>= 4:4.8.0) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 is to be installed
Depends: libstdc++6 (>= 4.1.1) but 4.8.2-19ubuntu1 is to be installed
Depends: grass641 but it is not going to be installed
答案1
我遇到了同样的问题，按照 qgis 安装程序页面上的以下说明可以解决：
通过 ubuntugis：
ubuntugis 项目提供了各种 FOSSGIS 包的较新版本，QGIS 就是其中之一。
当前可用的包是精确的和俏皮的。
如果您想使用这些软件包，请http://qgis.org/debian从您的软件包中删除这些行/etc/apt/sources.list并通过输入以下命令升级更新的依赖项：
sudo apt-get install python-software-properties
sudo add-apt-repository ppa:ubuntugis/ubuntugis-unstable
sudo apt-get update
sudo apt-get install qgis python-qgis qgis-plugin-grass
对我来说，这非常完美。祝你好运！