In this post, we’ll investigate the reasons behind this error, look at the modifications made to early versions of Node.js, and talk about fixes.
The error message “Cannot find module ‘fs/promises'” can be ambiguous, particularly in relation to the filesystem (fs) module promises in more modern Node.js versions.
What’s the Error:
When trying to use the fs module promises syntax in a Node.js application, the error message “Cannot find module ‘fs/promises'” usually appears.
There are the following causes for this Error:
- Node.js Version
- Outdated npm Packages
- Incorrect Import Statement
Node.js Versions Isssue:
Node.js version 10.0.0 introduced the official addition of the fs/promises module. Before this release, there would be a similar error when the promises syntax was used directly with the fs module.
Node.js 10.0.0 and later: The fs/promises module was introduced, allowing developers to use promises directly.
You need to upgrade your node.js version. You can use a version manager like nvm or nvm-windows.
Check Dependencies
You can review your project’s dependencies using the following commands:
npm outdated
The above command shows a list of outdated packages. If you spot any dependencies that require updates, use the following command to update them:
npm update
Incorrect Import Statement:
If you are using an older version of Node.js without native support for fs/promises, ensure that you import the fs module correctly.
For Node.js 10.0.0 and later:
// Correct import for Node.js 10.0.0 and later
const { promises: fsPromises } = require('fs');
For older Node.js versions:
// For older Node.js versions
const fsPromises = require('fs').promises;
Package Lock File
You can also lock the package.json file once all your dependencies are installed. You can run the following command in your terminal to generate the package-lock.json file:
npm install
This command installs the dependencies listed in your package.json file and generates the package-lock.json file, which includes specific version information for each dependency and its dependencies.
You can also re-install all dependencies based on the updated dependencies by running the following command:
rm -rf node_modules npm install
This removes the existing node_modules directory and npm install regenerates it based on the updated dependencies.
Conclusion
We have discussed several solutions to solve The “Cannot find module ‘fs/promises'” issue. you can easily successfully resolve this issue by adjusting import statements, upgrading Node.js, and keeping dependencies up to date.
