Debian: apt-get を使用してパッケージをインストールできない

Debian: apt-get を使用してパッケージをインストールできない

私はDebian Jessieを使用しています。 geditをインストールしようとすると、次の問題が発生します。

XXX@XXX:~$ sudo apt-get install gedit
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 gedit : Depends: python3-gi-cairo (>= 3.0) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Geditだけでなく他のパッケージをインストールしようとしたときに同様の問題が発生しました。

私のsource.listファイル:

# deb cdrom:[Debian GNU/Linux 8.2.0 _Jessie_ - Official amd64 lxde-CD Binary-1 20150906-11:10]/ jessie main

#deb cdrom:[Debian GNU/Linux 8.2.0 _Jessie_ - Official amd64 lxde-CD Binary-1 20150906-11:10]/ jessie main

deb http://ftp.fr.debian.org/debian/ jessie main contrib non free
deb-src http://ftp.fr.debian.org/debian/ jessie main

deb http://security.debian.org/ jessie/updates main
deb-src http://security.debian.org/ jessie/updates main

# jessie-updates, previously known as 'volatile'
deb http://ftp.fr.debian.org/debian/ jessie-updates main
deb-src http://ftp.fr.debian.org/debian/ jessie-updates main

#deb http://ftp.fr.debian.org/debian/ jessie main contrib non-free

# testing
#deb http://ftp.fr.debian.org/debian testing main contrib non-free
#deb http://ftp.fr.debian.org/debian testing main 

deb http://httpredir.debian.org/debian jessie-backports main contrib non-free

source.list.d ディレクトリが空です。

編集する:

私は試した:

XXX@XXX:~$ sudo apt-get -f install
[sudo] password for XXX: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  ca-certificates-java default-jre default-jre-headless firebird2.5-common
  firebird2.5-common-doc firebird2.5-server-common fonts-opensymbol
  java-common libabw-0.1-1 libatk-wrapper-java libatk-wrapper-java-jni
  libboost-date-time1.58.0 libboost-filesystem1.55.0 libboost-system1.55.0
  libclucene-contribs1v5 libclucene-core1v5 libcmis-0.5-5v5 libe-book-0.1-1
  libeot0 libetonyek-0.1-1 libexttextcat-2.0-0 libexttextcat-data libfbclient2
  libfbembed2.5 libglew1.10 libgltf-0.0-0v5 liblangtag-common liblangtag1
  libmhash2 libmwaw-0.3-3 libmythes-1.2-0 libodfgen-0.1-1 libraptor2-0
  librasqal3 librdf0 libsctp1 libwps-0.4-4 libyajl2 lksctp-tools openjdk-7-jre
  openjdk-7-jre-headless tzdata-java uno-libs3 ure
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.

その後、再インストールしようとしましたが、同じエラーメッセージが表示されます。

編集2:

XXX@XXX~$  sudo apt-get upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
  openssl
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.

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