The following packages have unmet dependencies:
owncloud : Dépend: php-assetic but it is not going to be installed
Depends: php-doctrine-dbal (< 2.5) but it is not installable
Depends: php-opencloud but it is not going to be installed
Depends: php-pimple (< 2) but it is not going to be installed
Depends: php5 (>= 5.3.8) but it is not installable
Depends: php5-cli but it is not installable
Depends: php5-gd but it is not installable
Depends: php5-json but it is not installable
Depends: php5-mysql but it is not installable or
         php5-pgsql but it is not installable or
         php5-sqlite but it is not installable
Recommande: exim4 but it is not going to be installed or
            mail-transport-agent
Recommande: php-aws-sdk (< 3) but it is not going to be installed
Recommande: php-crypt-blowfish (>= 1.1.0~RC2-2~) but it is not going to be installed                Recommande: php-dropbox but it is not going to be installed
Recommande: php-google-api-php-client (< 1) but it is not going to be installed                Recommande: php5-apcu but it is not installable or
            php5-xcache but it is not installable
Recommande: php5-curl but it is not installable
Recommande: php5-imap but it is not installable
Recommande: php5-intl but it is not installable
Recommande: php5-ldap but it is not installable
Recommande: php5-mcrypt but it is not installable
Recommande: smbclient but it is not installable