title: Jupyter Notebook error. No such file or directory C:.../HOME
body: <p>I have installed Anaconda2, and today decided to update to Anaconda3. I installed Anaconda3 at the same time as I uninstalled Anaconda2. </p>
  
  <p>Now, Jupyter Notebook shows this error and quits every time I try to start it. </p>
  
  <p>The path in the error message is: "C:\Users\Hongyi\Documents\%HOME%"</p>
  
  <p>What is causing Jupyter Notebook to quit?</p>
  
  <p><a href="https://i.stack.imgur.com/D1SK7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/D1SK7.png" alt="enter image description here"></a></p>