node_modules/eslint/messages/extend-config-missing.js

"use strict";

module.exports = function(it) {
    const { configName, importerName } = it;

    return `
ESLint couldn't find the config "${configName}" to extend from. Please check that the name of the config is correct.

The config "${configName}" was referenced from the config file in "${importerName}".

If you still have problems, please stop by https://eslint.org/chat/help to chat with the team.
`.trimLeft();
};