MiKTeX and proTeXt ⇒ Error when compiling

[yihan]

I get this error shown in the console output when I compile my code.

! Undefined control sequence.
<argument> 1.5\lineheight

Can anyone enlighten me on what error this is and how to resolve it?

[Stefan Kottwitz]

Hi yihan,

welcome to the board!

\lineheight is just unknown. If you mean the height of a normal text line, you could use \baselineskip instead.

Stefan