title: How can I update vue cli version?
body: <p>I want to create a project on Vue Project Manager. When I try, I see that error message;</p>
  
  <p><strong>"vue create is a Vue CLI 3 only command and you are using Vue CLI 2.9.6."</strong></p>
  
  <p>This is my vue --version output: <strong>@vue/cli 4.0.5.</strong></p>
  
  <p>How can I fix this?</p>
  
  <p>My system configuration is as follow:</p>
  
  <blockquote>
    <p>Ubuntu 18.04
    Npm 6.13.0 
    Node 10.16.3</p>
  </blockquote>