title: I cannot open Anaconda and Jupyter has 0 active kernels
body: <p>Firstly, I re-installed Anaconda, but I cannot open Anaconda. When I click it, it has no response. When I am trying to open Anaconda at the command line using the following:</p>
  
  <pre><code>anaconda-navigator
  </code></pre>
  
  <p>I got an error as follows:</p>
  
  <pre><code>from PySide import __version__ as PYSIDE_VERSION  # analysis:ignore
  ModuleNotFoundError: No module named 'PySide'  
  </code></pre>
  
  <p>But I actually have piped pyqt5. I do not know how to solve it, I cannot open Anaconda.</p>
  
  <p>Secondly，as I am not able to open Anaconda, I am trying to open Jupyter at the command line using <code>jupyter notebook</code>, but I got error as <code>0 active kernels</code>. When I get into the Jupyter notebook, I can't do anything. I cannot build a new file as follows: when I click the new button, no response.</p>
  
  <p><img src="https://i.stack.imgur.com/IgfNR.png" alt="image"></p>
  
  <p>I've tried to re-install Python and Anaconda many times, but I still get the error. Can anyone help me to figure out what's wrong with it?</p>