Error:Redux is not defined

Whenever I try to solve Redux Freecodecamp Challenges I always get -
Uncaught Reference error: Redux is not defined
So, what should I do?

const reducer = (state = 5) => {
 return state;
// Redux methods are available from a Redux object
// For example: Redux.createStore()
// Define the store here:
const store = Redux.createStore(reducer)

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.129 Safari/537.36.

Challenge: Create a Redux Store

Link to the challenge:

Sorry but I am not able to reproduce this error. When I use the code you have posted above in this challenge it passes the tests without any error. Can you try in a different browser and see if it still gives an error?

It’s working for me as well.

I have tried in Mozilla Firefox but it still gives the error -
Reference error : Redux is not defined
So, what should I do ?

just ignore that question and start doing other

This error is coming in every Redux questions from Freecodecamp

did you have windows 7 OS???

I am having the same problem both in fireFox and chrome…for all redux learn

Do you have any errors in the browser console? Press F12 and look at the console.

Also, can you try this?

  1. Right-click the empty preview window and select Inspect from the context menu.

  2. Switch to the Console tab and type Redux, press Enter.

What do you get in the console?