Uncaught Referenceerror: Require Is Not Defined React Rails

I just fixed two errors like this. Uncaught ReferenceError: $ is not defined Uncaught ReferenceError: React is not defined Now I get this. I just keep getting these errors. I am ju

Solution 1:

Move require_tree . at the end in application.js like:

//= require rails-ujs
//= require jquery
//= require jquery_ujs
//= require react
//= require_tree .