title: ReferenceError: undefinedcreateProvider is not defined
body: <p>I have a problem with my react project.
  after 5 months of developing this project, I get this error a lot.
  <code>undefinedcreateProvider is not defined</code>
   and I have to reinstall node_modules. But I get this error again after a few changes in the project.
  I don't know why this error appears!</p>
  
  <p><a href="https://i.stack.imgur.com/6KgXo.png" rel="noreferrer"><img src="https://i.stack.imgur.com/6KgXo.png" alt="undefinedcreateProvider is not defined"></a></p>