lstinputlisting[language={[Sharp]C},numbers=left]{MyFile.cs}

(/usr/share/texlive/texmf-dist/tex/latex/listings/lstlang1.sty)
(/home/me/MyFile.cs

! Package inputenc Error: Unicode char �lst@FillFixed@lst@EC� (U+20B3B)
(inputenc)                not set up for use with LaTeX.

See the inputenc package documentation for explanation.
Type  H <return>  for immediate help.
 ...

l.1 using
             System;

! Package inputenc Error: Keyboard character used is undefined
(inputenc)                in inputencoding `utf8'.

See the inputenc package documentation for explanation.
Type  H <return>  for immediate help.
 ...

l.1 using
             System;
```

usepackage[german]{babel}
usepackage[utf8]{inputenc}
usepackage[T1]{fontenc}
usepackage{amsmath}
usepackage{amssymb}
usepackage{float}
usepackage{listings}
usepackage{graphicx}