title: Jupyter notebook not working 0 active kernels - MacOSX
body: <p>I'm new to the apple mac family and currently on OSX El Capitan 10.11.5 . 
  I've installed anaconda frame work, when I type
  <code>
  jupyter notebook
  OR
  jupyter notebook --port=8889</code></p>
  
  <p>in the terminal the following appears - 
  <code>
  [W 12:50:17.219 NotebookApp] Unrecognized JSON config file version, assuming version 1
  [I 12:50:17.435 NotebookApp] [nb_conda_kernels] enabled, 1 kernels found
  [I 12:50:17.760 NotebookApp] ✓ nbpresent HTML export ENABLED
  [W 12:50:17.760 NotebookApp] ✗ nbpresent PDF export DISABLED: No module named nbbrowserpdf.exporters.pdf
  [I 12:50:17.764 NotebookApp] [nb_conda] enabled
  [I 12:50:17.824 NotebookApp] [nb_anacondacloud] enabled
  [I 12:50:17.848 NotebookApp] Serving notebooks from local directory: /Users/paawan
  [I 12:50:17.848 NotebookApp] 0 active kernels 
  [I 12:50:17.848 NotebookApp] The Jupyter Notebook is running at: <a href="http://localhost:8889/" rel="nofollow noreferrer">http://localhost:8889/</a>
  [I 12:50:17.848 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
  </code></p>
  
  <p>(with few port changes in the two commands. Also important thing to observe is that it says 0 active kernels)
  And I'm directed to browser where the following can be seen in traditional style - </p>
  
  <p>ERROR:The requested URL could not be retrieved</p>
  
  <p>The following error was encountered while trying to retrieve the URL: <a href="http://localhost:8888/tree" rel="nofollow noreferrer">http://localhost:8888/tree</a></p>
  
  <p>Connection to 127.0.0.1 failed.</p>
  
  <p>I've tried all possible solutions from -</p>
  
  <p><a href="https://stackoverflow.com/questions/35681391/jupyter-has-0-active-kernels-anaconda-with-python-2-7">Jupyter has 0 active kernels (Anaconda with Python 2.7)</a></p>
  
  <p><a href="https://github.com/jupyter/notebook/issues/297" rel="nofollow noreferrer">https://github.com/jupyter/notebook/issues/297</a></p>
  
  <p>But still the issue persists or some other pops up.
  Also I've tried to make it work through pip but there also some or the other mac related issues occur - </p>
  
  <p><a href="https://github.com/pypa/pip/issues/3165" rel="nofollow noreferrer">https://github.com/pypa/pip/issues/3165</a></p>
  
  <p><a href="https://stackoverflow.com/questions/33004708/osx-el-capitan-sudo-pip-install-oserror-errno-1-operation-not-permitted">OSX El Capitan: sudo pip install OSError: [Errno: 1] Operation not permitted</a></p>
  
  <p>Please help. I'm in desperate need.</p>