title: sphinx-build: error: unrecognized arguments: -b html build/doctrees source build/html
body: <p>I am using <a href="http://sphinx.pocoo.org/" rel="nofollow">Sphinx</a> for documenting my project. when i am running <code>make html</code> i am getting this error.</p>
  
  <p>I have installed <code>Sphinx v1.1.2</code> . There might be some error in some of <code>.rst</code>, files but This error message is unhelpful since i do not know which file to check as i have more than 100 <code>.rst</code> files. So it is difficult to check files one by one. </p>
  
  <p>Is there any way to solve this error or at-least to find out which file is erroneous?</p>
  
  <p>Thanks in advance.</p>