CD
Cloudflare Developers•7mo ago
max

Worker deploys started failing with "Uncaught Error: No such module "punycode""

Hi all! We're using Workers for Platforms to deploy Hono-based workers and as of a few days ago, the deployment requests started failing with 
{
  result: null,
  success: false,
  errors: [
    {
      code: 10021,
      message: 'Uncaught Error: No such module "punycode".\n' +
        '  imported from "worker.js"\n'
    }
  ],
  messages: []
}
{
  result: null,
  success: false,
  errors: [
    {
      code: 10021,
      message: 'Uncaught Error: No such module "punycode".\n' +
        '  imported from "worker.js"\n'
    }
  ],
  messages: []
}
Have there been any changes made to the platform? We didn't change our build process and this is happening with previously successfully deploying code. Is there a recommended way around this? We're deploying with the following flags: 
compatibility_date: "2023-08-23",
compatibility_flags: ["nodejs_compat"],
compatibility_date: "2023-08-23",
compatibility_flags: ["nodejs_compat"],
1 Reply
Viktor
Viktor•7mo ago
The version of the punycode module bundled in Node.js is being deprecated. In a future major version of Node.js this module will be removed. Users currently depending on the punycode module should switch to using the userland-provided Punycode.js module instead.
Looks like it has been removed now. You could npm i -s punycode and use 
// CommonJS
const punycode = require('punycode/');
// ES Module
import punycode from "punycode/";
// CommonJS
const punycode = require('punycode/');
// ES Module
import punycode from "punycode/";
which also hides the deprecation warning in older node js versions

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