# LaTeX Font Warning on Natty Ubuntu Linux [duplicate]

I am using the following in a document:

``````\usepackage[T1]{fontenc}
\usepackage{calligra}
\usepackage{tgothic}
\usepackage{libertine}
``````

I am using Ubuntu Natty and I am getting the following warning:

`````` LaTeX Font Warning: Some font shapes were not available, defaults substituted.
``````

I must be missing a package but I am not sure which one?

-