Package babel Error: Unknown option `ngerman'

Question

I've tried to create German quotation marks in LaTeX, but after compiling with \usepackage[ngerman]{babel}, I get this error:

! Package babel Error: Unknow option `ngerman'. Either you misspelled it
(babel) or the language definition file ngerman.ldf was not found.

The solution "Partei"' doesn't work at all and the alternative \glqq only works with the \usepackage[ngerman]{babel}...

This is my code:

\documentclass[12pt,a4paper,oneside]{scrartcl}
\usepackage[latin1]{inputenc}
%\usepackage[ngerman]{babel}
\usepackage{graphics}
\usepackage{multicol}
\usepackage{hyperref}
\renewcommand*{\UrlFont}{\normalfont}
\usepackage{fancyhdr}

can anybody help me please? I have to turn in my paper next week...

Here's my "extended example":

I want to have German quotation marks. Normally, there are two possibilities to accomplish that:

1. either you do it this way: "`Partei"' and compile it. Unfortunately, this does not work any more (it has worked for my last paper, but I didn't change anything in my TeXmaker)

2. you can write: \glqq Partei\grqq and then you get German quotation marks in case you have installed the \usepackage[ngerman]{babel} or \usepackage{german}, but with both usepackaged I get the error described above.

Normally, I work with TeXmaker on Linux Ubuntu.

Do you need any more information? I'm not quite an expert on this field, sorry...