Warning: invalid next.config.js options detected

When I start my Next.js app, I receive this warning:

warn  - Invalid next.config.js options detected: 
[
  {
    "instancePath": "",
    "schemaPath": "#/additionalProperties",
    "keyword": "additionalProperties",
    "params": {
      "additionalProperty": "lessVarsFilePath"
    },
    "message": "must NOT have additional properties"
  }
]
See more info here: https://nextjs.org/docs/messages/invalid-next-config

My next.config.js file looks like this:

const withAntdLess = require("next-plugin-antd-less");

const config = {
    lessVarsFilePath: "./src/front-end/styles/antd-variables.less",

    webpack(config) {
        return config;
    },

    images: {
        domains: ["images.ctfassets.net"],
    },
};

module.exports = withAntdLess(config);

[MarkLyck]

This seems to be more of a problem with next-plugin-antd-less than next itself.

I think in 12.2.2 next added warnings for extending the config with other keys, and this is a plugin that does that but shouldn’t.

Still happening in next 12.3.1 and this seems to be abandoned?

[0fan]

+1