小编Nik*_*las的帖子

我有一个新安装的 Ubuntu 22.04.1 LTS，上面安装了 npm 和 docker。

当我想要启动 NextJS Web 服务器 ( npm run dev) 时，出现以下错误消息：

niklas@srv-code01:~/Desktop/Code/Javascript/NextJS/website_01$ npm run dev

> website_01@0.1.0 dev
> next dev

/home/niklas/Desktop/Code/Javascript/NextJS/website_01/node_modules/next/dist/cli/next-dev.js:315
            showAll: args["--show-all"] ?? false,
                                         ^

SyntaxError: Unexpected token '?'
    at wrapSafe (internal/modules/cjs/loader.js:915:16)
    at Module._compile (internal/modules/cjs/loader.js:963:27)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.dev (/home/niklas/Desktop/Code/Javascript/NextJS/website_01/node_modules/next/dist/lib/commands.js:10:30)
    at Object.<anonymous> (/home/niklas/Desktop/Code/Javascript/NextJS/website_01/node_modules/next/dist/bin/next:141:28)
    at Module._compile (internal/modules/cjs/loader.js:999:30)

我从错误消息中看不到任何内容。错误的原因是什么？使用以下命令也会出现错误消息：npm run start

我安装了最新版本的 NPM。

在端口 3000 上启动 NPM 开发或生产服务器

当我尝试certbot在 Linux Ubuntu Server 20.04.3 LTS 上的控制台中运行时，出现以下错误：

Traceback (most recent call last):
  File "/usr/bin/certbot", line 11, in <module>
    load_entry_point('certbot==0.40.0', 'console_scripts', 'certbot')()
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 490, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2854, in load_entry_point
    return ep.load()
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2445, in load
    return self.resolve()
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2451, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/usr/lib/python3/dist-packages/certbot/main.py", line 18, in <module>
    from certbot import cert_manager
  File "/usr/lib/python3/dist-packages/certbot/cert_manager.py", line 15, in <module>
    from certbot import ocsp
  File …