title: Error when running pdflatex with beamerposter: beamerposter.sty not found
body: <p>I'm not a particularly experienced linux user, so bear with me if I say anything stupid.</p>
  
  <p>I'm trying to make a poster using the beamerposter package within the beamer class. My "code" is fairly barebones right now;</p>
  
  <pre><code>\documentclass{beamer}
  \usepackage[orientation=portrait, size=a1, scale=1.4]{beamerposter}
  \usepackage[absolute,overlay]{textpos}
  \title{An Efficient Method for Characterising Noise in the Time Domain}
  \author{Jim Barrett}
  \begin{document}
  Write something here
  \end{document}
  </code></pre>
  
  <p>When I run the command </p>
  
  <pre><code>pdflatex poster.tex
  </code></pre>
  
  <p>It prints a bunch of things that are familiar from when I normally compile latex documents, and then it stops with the warning;</p>
  
  <pre><code>! LaTeX Error: File `beamerposter.sty' not found.
  </code></pre>
  
  <p>I've tried running things like</p>
  
  <pre><code>sudo apt-get install texlive
  sudo apt-get install latex-beamer
  </code></pre>
  
  <p>But it just tells me that I've already got these things and they're up to date.</p>
  
  <p>I'm running this on Ubuntu 14.04 LTS</p>
  
  <p>Let me know if there's any more details required to diagnose this.</p>
  
  <p>Thanks in advance :)</p>