WSL2 Ubuntu 22 LTS下安装vnc4server提示无安装候选的问题求助

Hey, sorry to hear you're stuck with this vnc4server issue on your WSL2 Ubuntu 22.04 LTS setup. Let's walk through what's happening here and how you can get a working VNC server up and running.

First, let's recap the error you're seeing when running the install command:

sudo apt install vnc4server

Output:

Reading package lists... Done

Building dependency tree... Done

Reading state information... Done

Package vnc4server is not available, but is referred to by another package.

This may mean that the package is missing, has been obsoleted, or

is only available from another source

E: Package 'vnc4server' has no installation candidate

You mentioned there's barely any info on vnc4server online these days—and that makes total sense. The thing is, vnc4server has been removed from Ubuntu's official repositories starting with 22.04 LTS. It's an older, unmaintained piece of software, so the Ubuntu team dropped it in favor of more modern, actively supported alternatives. That's why you can't find it in the default sources, and why there's so little recent info about it.

Here's what you can do instead: #

The most popular replacement for vnc4server on modern Ubuntu is tigervnc-standalone-server—it's lightweight, well-supported, and works great with WSL2. Here's how to set it up:

1. First, update your package lists to make sure you're pulling the latest available software:

sudo apt update && sudo apt upgrade -y

2. Install the TigerVNC server package:

sudo apt install tigervnc-standalone-server tigervnc-xorg-extension

3. Initialize the VNC server (you'll be prompted to set a password for remote access when you run this for the first time):

vncserver

If you ever need to stop the VNC server instance (the default display is :1), you can run:

vncserver -kill :1

A quick note about trying to use vnc4server anyway: #

If you absolutely must use vnc4server for some specific reason, you'd have to either find a third-party PPA that still hosts it, or compile it from source. But I strongly don't recommend this—since it's unmaintained, it could have security vulnerabilities that won't get fixed. Stick to the supported alternatives like TigerVNC instead.

备注：内容来源于stack exchange，提问作者huang