title: How to solve 404 error of jupyter lab
body: <p>I installed Anaconda on my windows 10. and updated all packages.
  now I am trying to open Jupyter lab by cmd.</p>
  
  <p>when I type this command in cmd: jupyter lab
  it just opens a tab in google chrome that shows:</p>
  
  <p>"404 : Not Found You are requesting a page that does not exist!"
  <img src="https://i.stack.imgur.com/XMSre.jpg" alt="enter image description here"></p>
  
  <p>could you please help me to solve this problem to be able to open jupyter lab</p>
  
  <p>thanks</p>