Should upgrade to latest react versions (16.x)

[tirthaguha]

Should upgrade to latest versions for react and react-dom.
Proptypes too have moved from react to proptypes.

[w3b3]

That would actually be helpful. Who is the repo #owner?

[kevinashworth]

Or create your own:

npx create-react-app my-redux-saga-beginner-tutorial
cd my-redux-saga-beginner-tutorial
yarn add redux redux-saga

Copy main.js except for the first line into src/index.js
Copy reducers.js and Counter.js into src

Optionally, delete App.* etc.

Run yarn start and you're good to go, making slight adjustments in the tutorial for index.js vs main.js and such.