SyntaxError: Unexpected identifier 'assert' when using Node.js v22.0.0+ with ultracite

[101sam]

SyntaxError: Unexpected identifier 'assert' when using Node.js v22.0.0+ with ultracite

Description

When running npx ultracite with Node.js v22.0.0 and above, the following error is thrown:

file:///Users/ABCD/TEST//node_modules/.pnpm/ultracite@4.1.14/node_modules/ultracite/scripts/run.mjs:5
import packageJson from '../package.json' assert { type: 'json' };
                                          ^^^^^^

SyntaxError: Unexpected identifier 'assert'
    at compileSourceTextModule (node:internal/modules/esm/utils:337:16)
    at ModuleLoader.moduleStrategy (node:internal/modules/esm/translators:166:18)
    at callTranslator (node:internal/modules/esm/loader:416:14)
    at ModuleLoader.moduleProvider (node:internal/modules/esm/loader:422:30)
    at async link (node:internal/modules/esm/module_job:88:21)

Node.js v22.0.0

The same command works fine with earlier versions of Node.js (e.g., v18.x or v20.x or v21.x).

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Steps to Reproduce

1. Install Node.js v22.0.0 (or any version >= v22.0.0).
2. Run the following command:

   npx ultracite

3. Observe the error.

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Expected Behavior

The npx ultracite command should run successfully without throwing a syntax error.

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Actual Behavior

The command fails with a SyntaxError: Unexpected identifier 'assert' when attempting to import package.json using the assert { type: 'json' } syntax.

---

Environment

• Node.js Version: v22.0.0
• ultracite Version: 4.1.14
• Operating System: macOS/Windows/Linux (mention your OS here)

========================================================
Date..............: 2024-12-29 05:32:14 PST 
Installed Global Packages: 
nvm       : 0.40.1
node      : v22.0.0
npm       : 10.5.1
Node.js : v22.0.0
yarn       :  
pnpm     : 9.15.0
bun        : Not installed
corepack  : 0.26.0
pm2       : 5.4.3

=== System Information ===
Hostname: 123.internal
OS: Darwin
Kernel Version: 24.2.0
Processor: arm
CPU Architecture: arm64
Memory: 184.734 GB
Disk Space: 1.3Ti
========================================================

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Additional Information

• The error seems to be related to the assert { type: 'json' } syntax used in the run.mjs file of the ultracite package.
• This syntax works in Node.js v16.14.0 and above for most versions but appears to break in Node.js v22.0.0+.
• The issue might be related to changes in the ECMAScript Module (ESM) implementation in Node.js v22.0.0.

---

Similar issues were encountered when attempting to use the GitHub repository:
next-forge

[mutou981]

same

[github-actions]

🚀 Issue was released in v4.1.15 🚀