LaTeX warning: Font shape undefined

Problem

Compiling LaTeX document gives this warning:

foo.tex LaTeX Font Warning: Font shape OT1/cmss/bx/it undefined

LaTeX compilation gives a lot of warnings, that most folks ignore. However, this one can be irritating since it pops up a split window in Vim when compiled using Vim-LaTeX. So, at least for that irritating reason I wanted this warning to go away.

Solution

Use the Latin Modern font package that has a larger collection of fonts and sizes that should take of such errors:

\usepackage{lmodern}

Tried with: Ubuntu 14.04