Я не могу установить браузер Opera на lubuntu

Выполнение этих команд для установки Opera:

для установки ключа:

wget -O - http://deb.opera.com/archive.key | sudo apt-key add -

для установки хранилища:

sudo sh -c 'echo "deb http://deb.opera.com/opera-stable/ stable non-free" >> /etc/apt/sources.list.d/opera.list'

sudo apt-get update 
sudo apt-get install opera

, но в конце Я получаю это сообщение в своем командном терминале:

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:
opera : Depends: libgstreamer-plugins-base0.10-0 (>= 0.10.16) but it is not installable
     Depends: libgstreamer0.10-0 (>= 0.10.15) but it is not installable
     Depends: gstreamer0.10-plugins-good but it is not installable
     Recommends: flashplugin-nonfree
E: Unable to correct problems, you have held broken packages.

В командной строке введите lsb_release -a, где говорится, что моя версия Ubuntu - Ubuntu 17.10, но я использую lubuntu.