I want to install
gnuplot on Ubuntu 12.04. However, it always fails with the following log:
Reading package lists... Done Building dependency tree Reading state information... Done gnuplot is already the newest version. The following packages were automatically installed and are no longer required: language-pack-zh-hans language-pack-kde-en language-pack-kde-zh-hans language-pack-kde-en-base kde-l10n-engb kde-l10n-zhcn language-pack-zh-hans-base firefox-locale-zh-hans language-pack-kde-zh-hans-base Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 39 not upgraded.
What can I do to fix this problem?