# greek in latex-template thesis

I am using TexMaker and I have just found a beautiful template for my thesis http://www.latextemplates.com/template/masters-doctoral-thesis

I have the problem that i can't write greeks.

I have tried to add the following commands

\usepackage[english,greek]{babel} and \usepackage[iso-8859-7]{inputenc}

but it returns errors.

\usepackage[greek,english]{babel}