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๐Ÿš€ Starting with Jest Tests in Next.js and Encountering an Error Right Away! ๐Ÿš€


I encountered an initial error:

[Error] Parsing error: Cannot find module 'next/babel'

Let’s look into how to fix this. The first solution I found was this:

Create a .babelrc file in the project root and add the following code:

{
  "presets": ["next/babel"],
  "plugins": []
}

Next, open the .eslintrc.json file in the root directory. It probably looks like this:

{
  "extends": ["next/core-web-vitals"]
}

You need to add next/babel to this part:

{
  "extends": ["next/babel", "next/core-web-vitals"]
}

Does that solve the problem? Yes, but…

In reality, you don’t need to add .babelrc. Just adding next/babel to .eslintrc.json resolves the issue.

If it still doesn’t work, consider adding .babelrc as well.

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