Uncaught Error: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function but got: object

Question

I am getting this error:

Uncaught Error: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/funct

Answer 1

@Balasubramani M saved me here. Wanted to add one more to help people. This is the problem when you're gluing too many things together and being cavalier with versions. I updated a version of material-ui and need to change

import Card, {CardContent, CardMedia, CardActions } from "@material-ui/core/Card"; 

to this:

import Card from '@material-ui/core/Card';
import CardActions from '@material-ui/core/CardActions';
import CardContent from '@material-ui/core/CardContent';
import CardMedia from '@material-ui/core/CardMedia';