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

If you have encountered the error message “Uncaught Error: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function but got: object” while working with JavaScript, you’re not alone. This error typically occurs when you are trying to render a component in React but the component you are passing is not a valid type.

There can be a few reasons why this error occurs. Let’s explore some possible solutions:

1. Check the Import Statement

One common reason for this error is that you have made a mistake in the import statement of your component. Make sure that you have imported the component correctly and that the path to the component file is accurate.

Here’s an example of a correct import statement:

import MyComponent from './MyComponent';

2. Verify the Component Name

Another reason for this error is that you might have misspelled the name of the component when using it in your code. Double-check the component name and ensure that it matches the name used in the component definition.

For example, if your component is defined as:

function MyComponent() {
  // Component code here
}

Make sure that you are using the correct name when rendering it:

3. Check for Default Exports

If you are importing a component from another file, ensure that the component is exported as the default export. This is important because React expects the default export to be the component itself.

Here’s an example of exporting a component as the default:

export default function MyComponent() {
  // Component code here
}

4. Verify the Component’s Return Statement

If you are using a functional component, make sure that the component’s return statement is returning a valid JSX element. Remember, JSX elements should be enclosed in parentheses.

Here’s an example of a correct return statement:

return (
  

    
Hello, World!
  
);

By following these steps, you should be able to resolve the “Uncaught Error: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function but got: object” error in your JavaScript code.

If you are still experiencing issues, it may be helpful to review the React documentation or seek assistance from the React community for further troubleshooting.

I hope this article has been helpful in resolving this error for you. Happy coding!