Vite automatically tries to disable the next available port configuration.

Describe the bug

The first bug

First of all, I started a V3 project with the port number of 3000 using parcel2. Then, I configured the port number to be 3000 according to the vite2 document, and I also configured strictport to be true. However, after I started the vite project, the port was 3000, and it was not detected that the 3000 port number was occupied by another project.

The second bug

In addition, let me turn on the vite@2.0.4 And then I started again vite@2.3.1 Project. There is also a problem that no port reuse is detected.

Reproduction

Corresponding to the first bug

package.json

 "dependencies": {
    "vue": "^3.0.5"
  },
  "devDependencies": {
    "@vitejs/plugin-vue": "^1.2.2",
    "@vue/compiler-sfc": "^3.0.5",
    "vite": "^2.3.0"
  }

vite.config.js

import { defineConfig } from 'vite';
import vue from '@vitejs/plugin-vue';

// https://vitejs.dev/config/
export default defineConfig({
	plugins: [vue()],
	server: {
		port: 3000,
		strictPort: true,
	},
});

The picture below is a schematic diagram.

Corresponding to the second bug

The picture below is a schematic diagram.

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[maomincoding]

@Shinigami92 Sorry, it won’t happen again.

[Shinigami92]

@maomincoding For the future, please do not ping Evan directly. We have an active team around Vite that is working / triaging issues and PRs every day and we decide what is needed to reach Evan so he can manage higher order stuff in the whole Vue ecosystem.