title: Launching Spyder and JupyterNotebook causes importError when image not found
body: <p>I'm new to python and the virtual environment stuff. I'm facing issues opening jupyter notebook and Spyder after updating conda.</p>
  
  <p>Here are some info about the versions I have:</p>
  
  <pre><code> $ conda info
  
       active environment : None  '''is it caused by this ? '''
         user config file : /Users/-/.condarc
   populated config files : /Users/-/.condarc
            conda version : 4.5.4
      conda-build version : 3.0.27
           python version : 2.7.14.final.0
         base environment : /Users/-/anaconda2  (writable)
             channel URLs : https://repo.anaconda.com/pkgs/main/osx-64
                            https://repo.anaconda.com/pkgs/main/noarch
                            https://repo.anaconda.com/pkgs/free/osx-64
                            https://repo.anaconda.com/pkgs/free/noarch
                            https://repo.anaconda.com/pkgs/r/osx-64
                            https://repo.anaconda.com/pkgs/r/noarch
                            https://repo.anaconda.com/pkgs/pro/osx-64
                            https://repo.anaconda.com/pkgs/pro/noarch
            package cache : /Users/-/anaconda2/pkgs
                            /Users/-/.conda/pkgs
         envs directories : /Users/-/anaconda2/envs
                            /Users/-/.conda/envs
                 platform : osx-64
               user-agent : conda/4.5.4 requests/2.18.4 CPython/2.7.14 Darwin/15.5.0 OSX/10.11.5
                  UID:GID : 501:20
               netrc file : None
             offline mode : False
  
  
  JupyerNotebook version : 5.5.0
  Jupyter version : 4.4.0
  Spyder version : 3.2.8
  </code></pre>
  
  <p>Spyder fails to launch and when trying to launch spyder from anaconda navigator I get this error:</p>
  
  <p>/anaconda2/lib/python2.7/site-packages/zmq/backend/cython/<strong>init</strong>.py", line 6, in 
      from . import (constants, error, message, context,
      ImportError: dlopen(/Users/-/anaconda2/lib/python2.7/site-packages/zmq/backend/cython/error.so, 2): Library not loaded: @rpath/libsodium.23.dylib
      Referenced from: /Users/-/anaconda2/lib/libzmq.5.dylib
      Reason: image not found</p>
  
  <p>Trying to launch jupyter notebook from anaconda throws the same <code>image not found</code> error:</p>
  
  <p>/anaconda2/lib/python2.7/site-packages/zmq/backend/cython/<strong>init</strong>.py", line 6, in 
          from . import (constants, error, message, context,
      ImportError: dlopen(/Users/-/anaconda2/lib/python2.7/site-packages/zmq/backend/cython/error.so, 2): Library not loaded: @rpath/libsodium.23.dylib
        Referenced from: /Users/-/anaconda2/lib/libzmq.5.dylib
        Reason: image not found</p>
  
  <p>I found out that after updating, a new Anaconda2 folder was initialized for only the <code>zmq</code> file <code>/anaconda2/lib/python2.7/site-packages/zmq/backend/cffi/__pycache__</code>. </p>
  
  <p>Everything was working smoothly but after following anaconda instructions and recommendations to update I started getting those errors.</p>
  
  <p>How can I resolve this issue? Is it because the <code>active environment : None</code>?</p>