title: Can not install libnuma-dev on ubuntu
body: <p>I installed libnuma-dev by:</p>
  
  <pre><code>sudo apt-get install libnuma-dev
  </code></pre>
  
  <p>But I get:</p>
  
  <pre><code>Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:
  
  The following packages have unmet dependencies:
    libnuma-dev : Depends: libnuma1 (= 2.0.8~rc3-1) but 2.0.9~rc5-1ubuntu3.14.04.2 is to be installed
  E: Unable to correct problems, you have held broken packages.
  </code></pre>
  
  <p>I tried uninstall and re-install, but it doesn't work. Can anyone help me? Thanks a lot! </p>