title: Plone buildout error non-existant file
body: <p>I have a Plone 4.3.3 site that is throwing an error on buildout:</p>
  
  <pre><code>Traceback (most recent call last):
    File "/usr/local/Proforest4.3/buildout-cache/eggs/zc.buildout-2.2.5-py2.7.egg/zc/buildout/buildout.py", line 1946, in main
      getattr(buildout, command)(args)
    File "/usr/local/Proforest4.3/buildout-cache/eggs/zc.buildout-2.2.5-py2.7.egg/zc/buildout/buildout.py", line 626, in install
      installed_files = self[part]._call(recipe.install)
    File "/usr/local/Proforest4.3/buildout-cache/eggs/zc.buildout-2.2.5-py2.7.egg/zc/buildout/buildout.py", line 1370, in _call
      return f()
    File "/data/usr/local/Proforest4.3/buildout-cache/eggs/plone.recipe.precompiler-0.6-py2.7.egg/plone/recipe/precompiler/__init__.py", line 29, in install
      return self._run()
    File "/data/usr/local/Proforest4.3/buildout-cache/eggs/plone.recipe.precompiler-0.6-py2.7.egg/plone/recipe/precompiler/__init__.py", line 35, in _run
      self._compile_eggs()
    File "/data/usr/local/Proforest4.3/buildout-cache/eggs/plone.recipe.precompiler-0.6-py2.7.egg/plone/recipe/precompiler/__init__.py", line 67, in _compile_eggs
      py_compile.compile(fn, None, None, True)
    File "/usr/lib64/python2.7/py_compile.py", line 123, in compile
      with open(cfile, 'wb') as fc:
  IOError: [Errno 13] Permission denied: '/data/usr/local/Proforest4.3/test/src/proforest.content/proforest/content/behaviours/accordion.pyc'
  </code></pre>
  
  <p>accordion.py does exist, but not the .pyc version</p>
  
  <p>Permissions on accordion.py seem correct (owned by plone_buildout etc.)</p>
  
  <p>How do I resolve?</p>