Fixing the node:fs Module Error in Node.js

Reading and renaming files using Node.js modules like fs is common in CLI tools and backend scripts. When using the newer node: protocol style (e.g., require(“node:fs”)), you might face errors in older Node.js versions.

What Is node:fs?

node:fs is a modern specifier that explicitly refers to Node.js core modules. It helps differentiate built-in modules from user-installed ones (e.g., via npm).

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const { rename } = require("node:fs");
This syntax only works in Node.js v14.18.0+ and v16+.
Older Node versions will throw:
Error: Cannot find module 'node:fs'

Solution Options

Option 1: Use Compatible Syntax

For backward compatibility with older Node.js versions (v10, v12, early v14), use this instead:

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const fs = require("fs");
fs.rename('./1.txt', './2.txt', (err) => {
  if (err) throw err;
  console.log('File renamed successfully');
});
This works on all versions of Node.js.

Option 2: Update Node.js Version

If you want to use the modern node:fs import style:

  • Update your Node.js to v14.18.0 or higher
  • Recommended: Use the latest LTS version (v18.x or v20.x).

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