ERR_PACKAGE_PATH_NOT_EXPORTED

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Introduction

When working with Node.js and TypeScript, encountering errors can be frustrating, especially when they seem to arise from nowhere. In this article, we'll delve into the mysterious ERR_PACKAGE_PATH_NOT_EXPORTED error that occurs when attempting to use the revolt.js package. We'll explore the possible causes, including TypeScript stripping and module resolution issues, and provide a step-by-step guide to resolving this error.

Understanding the Error

The ERR_PACKAGE_PATH_NOT_EXPORTED error is a relatively new issue in Node.js, introduced in version 14.17.0. It occurs when the exports field is not defined in a package's package.json file, causing the module resolver to fail. In our case, the error is triggered by the @solid-primitives/trigger package, which is a dependency of revolt.js.

Environment Information

Before we dive into the solution, let's take a look at our environment information:

  • Node version: 23.7.0
  • TypeScript version: 5.8.2
  • @solid-primitives/trigger version: 1.2.0
  • package.json type: "module"

The Error Message

The error message is quite cryptic, but it points us in the right direction:

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: No "exports" main defined in C:\Users\jakem\lopez\node_modules\@solid-primitives\trigger\package.json

The Disconnect

At first glance, it seems like the exports section is indeed defined in the package.json file of the @solid-primitives/trigger package:

{
  "name": "@solid-primitives/trigger",
  "version": "1.2.0",
  "exports": {
    ".": {
      "import": "./index.js",
      "require": "./index.js"
    }
  },
  // ...
}

However, the error message suggests that the module resolver is unable to find the exports field. This is where things get interesting.

The Root Cause

After further investigation, we discovered that the issue is not with the @solid-primitives/trigger package itself, but rather with the way it's being resolved by the module resolver. The problem lies in the fact that the @solid-primitives/trigger package is a dependency of revolt.js, and the revolt.js package is using the type field in its package.json file to specify that it's a module.

However, the @solid-primitives/trigger package is not being resolved as a module, but rather as a CommonJS module. This is causing the module resolver to fail, resulting in the ERR_PACKAGE_PATH_NOT_EXPORTED error.

The Solution

To resolve this issue, we need to ensure that the @solid-primitives/trigger package is being resolved as a module. We can do this by adding the following line to our package.json file:

{
  "type": "module",
  "dependencies": {
    "@solid-primitives/trigger": "^1.2.0"
  }
}

By specifying the type field as "module", we're telling Node.js to resolve the @solid-primitives/trigger package as a module, rather than a CommonJS module.

Conclusion

In this article, we've explored the mysterious ERR_PACKAGE_PATH_NOT_EXPORTED error that occurs when using the revolt.js package. We've identified the root cause of the issue, which lies in the way the @solid-primitives/trigger package is being resolved by the module resolver. By adding the type field to our package.json file, we've been able to resolve this issue and ensure that the @solid-primitives/trigger package is being resolved as a module.

Additional Tips

  • Make sure to check the package.json file of the @solid-primitives/trigger package to ensure that the exports field is defined.
  • If you're using a version of Node.js older than 14.17.0, you may need to upgrade to a newer version to resolve this issue.
  • If you're still experiencing issues, try running npm install with the --force flag to force a reinstallation of the dependencies.

Related Issues

Further Reading

Introduction

In our previous article, we explored the mysterious ERR_PACKAGE_PATH_NOT_EXPORTED error that occurs when using the revolt.js package. We identified the root cause of the issue, which lies in the way the @solid-primitives/trigger package is being resolved by the module resolver. In this article, we'll provide a Q&A section to help you better understand the issue and its solution.

Q&A

Q: What is the ERR_PACKAGE_PATH_NOT_EXPORTED error?

A: The ERR_PACKAGE_PATH_NOT_EXPORTED error is a relatively new issue in Node.js, introduced in version 14.17.0. It occurs when the exports field is not defined in a package's package.json file, causing the module resolver to fail.

Q: Why is the @solid-primitives/trigger package causing the error?

A: The @solid-primitives/trigger package is a dependency of revolt.js, and the revolt.js package is using the type field in its package.json file to specify that it's a module. However, the @solid-primitives/trigger package is not being resolved as a module, but rather as a CommonJS module. This is causing the module resolver to fail, resulting in the ERR_PACKAGE_PATH_NOT_EXPORTED error.

Q: How can I resolve the ERR_PACKAGE_PATH_NOT_EXPORTED error?

A: To resolve the ERR_PACKAGE_PATH_NOT_EXPORTED error, you need to ensure that the @solid-primitives/trigger package is being resolved as a module. You can do this by adding the following line to your package.json file:

{
  "type": "module",
  "dependencies": {
    "@solid-primitives/trigger": "^1.2.0"
  }
}

By specifying the type field as "module", you're telling Node.js to resolve the @solid-primitives/trigger package as a module, rather than a CommonJS module.

Q: What if I'm using a version of Node.js older than 14.17.0?

A: If you're using a version of Node.js older than 14.17.0, you may need to upgrade to a newer version to resolve this issue. You can check the Node.js documentation for more information on upgrading to a newer version.

Q: What if I'm still experiencing issues after adding the type field to my package.json file?

A: If you're still experiencing issues after adding the type field to your package.json file, try running npm install with the --force flag to force a reinstallation of the dependencies. If the issue persists, you may need to seek further assistance from the Node.js community or the maintainers of the revolt.js package.

Q: What are some additional tips for resolving the ERR_PACKAGE_PATH_NOT_EXPORTED error?

A: Here are some additional tips for resolving the ERR_PACKAGE_PATH_NOT_EXPORTED error:

  • Make sure to check the package.json file of the @solid-primitives/trigger package to ensure that the exports field is defined.
  • If you're using a version of Node.js older than 14.17.0, you may need to upgrade to a newer version to resolve this issue.
  • If you're still experiencing issues, try running npm install with the --force flag to force a reinstallation of the dependencies.

Conclusion

In this Q&A article, we've provided answers to some of the most frequently asked questions about the ERR_PACKAGE_PATH_NOT_EXPORTED error. We've also provided additional tips for resolving the issue and upgrading to a newer version of Node.js. By following these tips and answers, you should be able to resolve the ERR_PACKAGE_PATH_NOT_EXPORTED error and get back to developing with revolt.js.

Related Issues

Further Reading