将JavaScript类导入另一个类时出现意外标识符{classname}

我正在使用Node v10.11.0并且正在从Ubuntu 18.04运行此脚本。

I'm using Node v10.11.0 and am running this script from Ubuntu 18.04.

我的文件设置如下所示：

My file setup looks like this:

main.js

import Login from './Login.mjs';

class Main {
    constructor() {
        const login = new Login();

        login.login();
    }
}

new Main();

Login.mjs

import readline from 'readline';

class Login {
    constructor() {
        this.username = '';
        this.password = '';
        this.readline = readline.createInterface({
            input: process.stdin,
            output: process.stdout
        });
    }

    login() {
        this.readline.question('What is your username?', answer => {
            this.username = answer;
        });

        this.readline.question('What is your password?', answer => {
            this.password = answer;
        });
    }
}

export default Login;

我正在调用 main.js 使用以下命令：

I'm calling the main.js with the following command:

node --experimental-modules main.js

这会导致以下错误：

(node:7280) ExperimentalWarning: The ESM module loader is experimental.
/home/jrenk/Workspace/bitefight/main.js:1
(function (exports, require, module, __filename, __dirname) { import Login from './Login.mjs';
                                                                 ^^^^^

SyntaxError: Unexpected identifier
    at new Script (vm.js:79:7)
    at createScript (vm.js:251:10)
    at Proxy.runInThisContext (vm.js:303:10)
    at Module._compile (internal/modules/cjs/loader.js:657:28)
    at Object.Module._extensions..js 
    (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at createDynamicModule (internal/modules/esm/translators.js:56:15)
    at setExecutor 
    (internal/modules/esm/create_dynamic_module.js:50:23)

^^^^^ 属于登录但我似乎无法在问题中将其格式化。

The ^^^^^ belongs under the Login but I can't seem to get it formatted right here in the question.

我也试图保存 Login.mjs as Login.js 并调用 main.js 没有 - experimental-modules 但这会导致完全相同的错误。

I also tried to save the Login.mjs as Login.js and calling the main.js without the --experimental-modules but this leads to the exact same error.

这个问题是类似于这个问题。正如我上面所说，我已经尝试了那里所描述但没有运气。

This question is similar to this question. As I said above I already tried what is described there but no luck.