Error in react class

[netin17]

Getting this error when using in react js class.
Error: Invalid hook call. Hooks can only be called inside of the body of a function component.

[coupez]

Can you put a code snippet with what you're trying to do? Also check out this helpful article from React https://reactjs.org/warnings/invalid-hook-call-warning.html . You. might be using different React versions.

[netin17]

import React from 'react';
import 'bootstrap/dist/css/bootstrap.min.css';
import Progress from 'react-circle-progress-bar'
class Home extends React.Component
{
constructor(props) {
super(props);
this.state = {
quantity: 1,
};
}
render()
{
return (

) } }

This is how I am using it
And I am getting this error "Error: Invalid hook call. Hooks can only be called inside of the body of a function component."### ``