I am trying to run ReactRails app and trying to run a very simple react-select component. However, in the same file if I print just a simple h2
element it works but <Select/>
doesn't work. It gives:
Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
I am trying to use react-select
component. I've installed it via yarn add
command.
User.jsx:
var React = require("react")
var Select = require("react-select")
var PropTypes = require("prop-types")
// also tried these ->
// import React from 'react';
// import createClass from 'create-react-class';
// import PropTypes from 'prop-types';
// import Select from 'react-select';
const options = [
{ value: 'chocolate', label: 'Chocolate' },
{ value: 'strawberry', label: 'Strawberry' },
{ value: 'vanilla', label: 'Vanilla' }
];
class User extends React.Component {
state = {
selectedOption: null,
}
handleChange = (selectedOption) => {
this.setState({ selectedOption });
console.log(`Option selected:`, selectedOption);
}
render() {
const { selectedOption } = this.state;
/*
return (
<h2>THIS WORKS!</h2>
)
*/
return (
<Select
value={selectedOption}
onChange={this.handleChange}
options={options}
/>
)
// Doesn't work:
// Uncaught Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
}
}
module.exports = User
I am very new to React world. What Am I missing here? What am I doing wrong?
Note: This did not solved my problem: Uncaught Error: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function but got: object
I'm not sure how the module.exports plays with React. When I try your code with ES6 syntax it seems to work fine.
import React from 'react';
import Select from 'react-select';
and then using ES6 export instead of module.exports:
export default User;
The Select component doesn't seem to be the issue.