What could be the issue with package.json when using Jest with NextJS?

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There could be several issues with package.json when using Jest with NextJS, including:

1. Incorrect or mismatched versions of Jest and NextJS dependencies in the package.json file.
2. Missing or invalid configuration options in the Jest section of package.json, such as incorrect path to test files or invalid regex patterns for file matching.
3. Conflicting or missing dependencies that Jest requires to run properly.
4. Invalid or unrecognized formatting in the package.json file, such as missing commas or brackets, which can cause errors when running Jest.

To fix these issues, it is recommended to review and update the Jest configuration in package.json, and to ensure that all dependencies are installed and up to date. Additionally, checking the Jest documentation and NextJS documentation can provide guidance on proper setup and troubleshooting.