# Create-react-app version issue

**URL:** <https://forum.codewithmosh.com/t/create-react-app-version-issue/709>\
**Category:** React\
**Created:** [November 15, 2020, 7:27pm UTC](https://forum.codewithmosh.com/t/create-react-app-version-issue/709 "2020-11-15T19:27:47Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![leon](https://avatars.discourse-cdn.com/v4/letter/l/dc4da7/32.png) [@leon](https://forum.codewithmosh.com/u/leon)\
**Post date:** [November 15, 2020, 7:27pm UTC](https://forum.codewithmosh.com/t/create-react-app-version-issue/709/1 "2020-11-15T19:27:47Z")

</div>

Hello Every One ,

I am taking the Mastering React course. I am running into a few issues. First of all if I install create-react-app by following this command npm i -g create-react-app@1.5.2 I am getting this error message :

"A template was not provided. This is likely because you’re using an outdated version of create-react-app. "

After I create the app there is no “src” folder created.

But if I run this command: npm i -g create-react-app I have no issue creating react app, and all the source folders are there. However, my app.js file is like this :

import logo from ‘./logo.svg’;

import ‘./App.css’;

function App() {

return (

```
<div className="App">

  <header className="App-header">

    <img src={logo} className="App-logo" alt="logo" />

    <p>

      Edit <code>src/App.js</code> and save to reload.

    </p>

    <a

      className="App-link"

      href="https://reactjs.org"

      target="_blank"

      rel="noopener noreferrer"

    >

      Learn React

    </a>

  </header>

</div>

```

);

}  
export default App;

Should I move forward with this or I have to install the correct version first?

Can anyone help ?

Thanks

---

<div class="post-metadata">

**Author:** ![A100D-JS](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.codewithmosh.com/a100d-js/32/8_2.png) [@A100D-JS](https://forum.codewithmosh.com/u/A100D-JS)\
**Post date:** [November 16, 2020, 1:23am UTC](https://forum.codewithmosh.com/t/create-react-app-version-issue/709/2 "2020-11-16T01:23:54Z")

</div>

Hi,  
You can move forward without worrying about errors you may get later in the course 🙂

---

<div class="post-metadata">

**Author:** ![leon](https://avatars.discourse-cdn.com/v4/letter/l/dc4da7/32.png) [@leon](https://forum.codewithmosh.com/u/leon)\
**Post date:** [November 16, 2020, 1:39am UTC](https://forum.codewithmosh.com/t/create-react-app-version-issue/709/3 "2020-11-16T01:39:18Z")

</div>

thanks. now while I am running the hello world program I am getting this error message in the console :  
"src\index.js  
Line 2:8: ‘ReactDOM’ is defined but never used no-unused-vars  
"  
The browser is an empty white page.

---

<div class="post-metadata">

**Author:** ![A100D-JS](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.codewithmosh.com/a100d-js/32/8_2.png) [@A100D-JS](https://forum.codewithmosh.com/u/A100D-JS)\
**Post date:** [November 16, 2020, 2:39am UTC](https://forum.codewithmosh.com/t/create-react-app-version-issue/709/4 "2020-11-16T02:39:15Z")

</div>

Can you take a picture of your code and send it here ?

---

<div class="post-metadata">

**Author:** ![leon](https://avatars.discourse-cdn.com/v4/letter/l/dc4da7/32.png) [@leon](https://forum.codewithmosh.com/u/leon)\
**Post date:** [November 17, 2020, 1:17am UTC](https://forum.codewithmosh.com/t/create-react-app-version-issue/709/5 "2020-11-17T01:17:45Z")

</div>

![hello_world_code_error](https://us1.discourse-cdn.com/flex020/uploads/codewithmosh/original/1X/5c41306ac4550d9fb3c53bbda6e7fc4f38c25ee9.png)

---

<div class="post-metadata">

**Author:** ![A100D-JS](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.codewithmosh.com/a100d-js/32/8_2.png) [@A100D-JS](https://forum.codewithmosh.com/u/A100D-JS)\
**Post date:** [November 23, 2020, 7:51am UTC](https://forum.codewithmosh.com/t/create-react-app-version-issue/709/6 "2020-11-23T07:51:54Z")

</div>

It’s not a real error it’s just telling you that you defined it but never used it in your app.  
If you go along with the course, mosh will use ReactDom to get the element.