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function canRequireModules() {
// via --experimental-require-module or newer than Node 22 support when this flag is no longer necessary
try {
require("./Util/Objects/SampleModule.mjs");
return true;
} catch(e) {
if(e.code === "ERR_REQUIRE_ESM") {
return false;
}
// Rethrow if not an ESM require error.
throw e;
}
}
if(!canRequireModules()) {
let error = new Error(`\`require("@11ty/eleventy")\` is incompatible with Eleventy v3 and this version of Node. You have a few options:
1. (Easiest) Change the \`require\` to use a dynamic import inside of an asynchronous CommonJS configuration
callback, for example:
module.exports = async function {
const {EleventyRenderPlugin, EleventyI18nPlugin, EleventyHtmlBasePlugin} = await import("@11ty/eleventy");
}
2. (Easier) Update the JavaScript syntax in your configuration file from CommonJS to ESM (change \`require\`
to use \`import\` and rename the file to have an \`.mjs\` file extension).
3. (More work) Change your project to use ESM-first by adding \`"type": "module"\` to your package.json. Any
\`.js\` will need to be ported to use ESM syntax (or renamed to \`.cjs\`.)
4. Upgrade your Node version (at time of writing, v22.12 or newer) to enable this behavior. If you use a version
of Node older than v22.12, try the --experimental-require-module command line flag in Node. Read more:
https://nodejs.org/api/modules.html#loading-ecmascript-modules-using-require`);
error.skipOriginalStack = true;
throw error;
}
// If we made it here require(ESM) works fine (via --experimental-require-module or newer Node.js defaults)
let mod = require("./Eleventy.js");
module.exports = mod;
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