Uncaught TypeError: Cannot read property 'createElement' of undefined in ReactJs
Dung Do Tien
Jul 19 2021
237
I have a small project with ReactJs, I want to create a small calculator and I have some form as below:
index.html
<head>
<title>My App</title>
</head>
<body>
<div id="myapp"></div>
</body>
index.js
import { Meteor } from "meteor/meteor";
import React from "react";
import { render } from "react-dom";
import CaculateComponent from "../../ui/App";
Meteor.startup(() => {
render(<CaculateComponent />, document.getElementById("myapp"));
});
App.js
import { React, Component } from "react";
class CaculateComponent extends Component {
constructor(props) {
super(props);
this.state = {};
}
render() {
return <h1>My caculating app</h1>;
}
}
export default CaculateComponent;
When running project I get an error Uncaught TypeError: Cannot read property 'createElement' of undefined.
TypeError: Cannot read property 'createElement' of undefined
How can I resolve it?
Thanks for any suggestions.
Have 3 answer(s) found.
-
s1
susmasagar bhattarai Jul 19 2021
In
App.jsyou need to command below:import { React, Component } from "react";to
import React, { Component } from 'react';And it's fixed for you!
-
M0
MSIIIXI Jul 19 2021
You need to change your
tsconfig.jsonfile should contain the following:{ "compilerOptions": { "jsx": "react", "lib": ["dom", "esnext"], "module": "esnext", "esModuleInterop": true }, "exclude": ["node_modules"] }rebuild and run, your issue will be fixed!
-
L0
Le Ba Tuan Anh Jul 19 2021
You can try to change
import React from "react";
to
import * as React from 'react';
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