When working with Jest, you may encounter a
SyntaxError with the message "Cannot use import statement outside a module." This error occurs when Jest encounters an
import statement in a file that it does not recognize as a module. In this guide, we will show you how to fix this error.
Before we begin, make sure that you have the following:
- Jest installed in your project
- A code editor of your choice
Follow these steps to fix the Jest
- Open the file where the error is occurring.
- Look for any
importstatements in the file.
- Change the
importstatement to use
For example, change this:
import MyModule from './my-module';
const MyModule = require('./my-module');
- Save the file and run your Jest tests again.
Q1. Why am I getting a
SyntaxError with the message "Cannot use import statement outside a module"?
This error occurs when Jest encounters an
import statement in a file that it does not recognize as a module.
Q2. Why does Jest not recognize my file as a module?
Jest only recognizes a file as a module if it has either a
.js file extension or if it is included in the
moduleFileExtensions configuration in your
Q3. Can I use
import statements in Jest?
Yes, you can use
import statements in Jest, but only in files that Jest recognizes as modules.
Q4. Can I use TypeScript with Jest?
Yes, you can use TypeScript with Jest. You will need to install the
ts-jest package and configure Jest to use it.
Q5. What other errors can occur when working with Jest?
Other common errors when working with Jest include
SyntaxError. These errors can occur for a variety of reasons and may require different solutions.
By following the steps in this guide, you should now be able to fix the Jest
SyntaxError with the message "Cannot use import statement outside a module." Remember to always check your code for
import statements in files that Jest does not recognize as modules.