Error: The extension could not load any config.

[bluelovers]

Describe the bug

Error: The extension could not load any config.

Expected behavior

should support without config file

Reproduction

.

Output

.

Extension Version

.

Vitest Version

.

Validations

• Check that you are using the latest version of the extension
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[sheremet-va]

it supports

[bluelovers]

[INFO 下午6:47:06] [v1.50.4] Vitest extension is activated because Vitest is installed or there is a Vite/Vitest config file in the workspace.
[INFO 下午6:47:20] [API] Resolving configs: ws-uber-drivers/vitest.config.ts
[下午6:47:20] [API] Spawning on-demand process...
[INFO 下午6:47:24] [API] Running Vitest v4.1.7 (ws-uber-drivers/vitest.config.ts) with "C:\Users\User\AppData\Roaming\fnm\aliases\default\node.EXE C:/Users/User/.windsurf/extensions/vitest.explorer-1.50.4-universal/dist/worker.js"
[Error 下午6:47:40] There were errors during config load.
[Error 下午6:47:40] [Error Error] Vitest failed to start: 
Error: Cannot define a nested project for a chromium browser. The project name "playwright (chromium)" was already defined. If you have multiple instances for the same browser, make sure to define a custom "name". All projects should have unique names. Make sure your configuration is correct.
    at file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:11204:31
    at Array.forEach (<anonymous>)
    at file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:11194:21
    at Array.forEach (<anonymous>)
    at resolveBrowserProjects (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:11175:19)
    at resolveProjects (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:11171:9)
    at Vitest._setServer (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:13134:20)
    at BasicMinimalPluginContext.handler (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:14175:5)
    at _createServer (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vite@8.0.14_@types+node@25._f298549140702a06a1406f57ce526c37/node_modules/vite/dist/node/chunks/node.js:26326:84)
    at createViteServer (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:8819:17)
Error: Vitest failed to start: 
Error: Cannot define a nested project for a chromium browser. The project name "playwright (chromium)" was already defined. If you have multiple instances for the same browser, make sure to define a custom "name". All projects should have unique names. Make sure your configuration is correct.
    at file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:11204:31
    at Array.forEach (<anonymous>)
    at file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:11194:21
    at Array.forEach (<anonymous>)
    at resolveBrowserProjects (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:11175:19)
    at resolveProjects (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:11171:9)
    at Vitest._setServer (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:13134:20)
    at BasicMinimalPluginContext.handler (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:14175:5)
    at _createServer (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vite@8.0.14_@types+node@25._f298549140702a06a1406f57ce526c37/node_modules/vite/dist/node/chunks/node.js:26326:84)
    at createViteServer (file:///D:/Users/WebstormProjects/ws-playwright/ws-uber-drivers/node_modules/.pnpm/vitest@4.1.7_@types+node@25_1f144577e99dd639544c2e55ff2f9439/node_modules/vitest/dist/chunks/cli-api.C6CiCDM3.js:8819:17)
	at e.u (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\extension.js:1:59239)
	at e.emit (node:events:519:28)
	at e.o.t.exports.ae (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\wrapper-Br94zcvg.js:1:38577)
	at e.o.t.exports.emit (node:events:519:28)
	at e.o.t.exports.dataMessage (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\wrapper-Br94zcvg.js:1:16501)
	at e.o.t.exports.getData (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\wrapper-Br94zcvg.js:1:15398)
	at e.o.t.exports.startLoop (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\wrapper-Br94zcvg.js:1:12110)
	at e.o.t.exports._write (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\wrapper-Br94zcvg.js:1:11402)
	at writeOrBuffer (node:internal/streams/writable:572:12)
	at _write (node:internal/streams/writable:501:10)
	at Writable.write (node:internal/streams/writable:510:10)
	at Socket.Z (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\wrapper-Br94zcvg.js:1:39601)
	at Socket.emit (node:events:519:28)
	at addChunk (node:internal/streams/readable:561:12)
	at readableAddChunkPushByteMode (node:internal/streams/readable:512:3)
	at Readable.push (node:internal/streams/readable:392:5)
	at TCP.onStreamRead (node:internal/stream_base_commons:189:23)
[Error 下午6:47:40] [Error Error] The extension could not load any config.
Error: The extension could not load any config.
	at wt (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\extension.js:1:71093)
	at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
	at async tr._defineTestProfiles (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\extension.js:11:5119)
	at async tr.defineTestProfiles (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\extension.js:11:4437)
	at async tr.activate (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\extension.js:11:13144)
	at async $n (c:\Users\User\.windsurf\extensions\vitest.explorer-1.50.4-universal\dist\extension.js:11:3089)
	at async vI._activate (file:///c:/Users/User/AppData/Local/Programs/Windsurf/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:494:15965)
	at async vI._waitForDepsThenActivate (file:///c:/Users/User/AppData/Local/Programs/Windsurf/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:494:15907)
	at async vI._initialize (file:///c:/Users/User/AppData/Local/Programs/Windsurf/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:494:15274)
[INFO 下午9:45:56] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\pnpm-workspace.yaml are already cached. Displaying them.
[INFO 下午9:52:06] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\package.json are already cached. Displaying them.
[INFO 上午7:53:02] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\package.json are already cached. Displaying them.
[INFO 上午8:01:55] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\docs\vitest-testing-guidelines.md are already cached. Displaying them.
[INFO 上午8:03:09] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\package.json are already cached. Displaying them.
[INFO 上午8:03:15] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\docs\vitest-testing-guidelines.md are already cached. Displaying them.
[INFO 上午8:07:18] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\AGENTS.md are already cached. Displaying them.
[INFO 上午8:08:12] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\docs\vitest-testing-guidelines.md are already cached. Displaying them.
[INFO 上午8:08:14] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\AGENTS.md are already cached. Displaying them.
[INFO 上午8:08:38] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\.env are already cached. Displaying them.
[INFO 上午8:08:39] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\docs\vitest-testing-guidelines.md are already cached. Displaying them.
[INFO 上午8:08:48] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\AGENTS.md are already cached. Displaying them.
[INFO 上午8:08:56] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\docs\vitest-testing-guidelines.md are already cached. Displaying them.
[INFO 上午8:09:15] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\AGENTS.md are already cached. Displaying them.
[INFO 上午8:09:29] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\.env are already cached. Displaying them.
[INFO 上午8:09:30] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\AGENTS.md are already cached. Displaying them.
[INFO 上午8:09:33] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\docs\vitest-testing-guidelines.md are already cached. Displaying them.
[INFO 上午8:11:15] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\AGENTS.md are already cached. Displaying them.
[INFO 上午8:11:23] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\docs\vitest-testing-guidelines.md are already cached. Displaying them.
[INFO 上午8:12:15] [DECOR] Decorations for d:\Users\WebstormProjects\ws-playwright\ws-uber-drivers\AGENTS.md are already cached. Displaying them.

import path from 'node:path';

import { defineConfig } from 'vitest/config';

import { storybookTest } from '@storybook/addon-vitest/vitest-plugin';

import { playwright } from '@vitest/browser-playwright';

import { __ROOT } from './__root';
import { InlineConfig } from 'vitest/node';

/**
 * 瀏覽器測試配置
 * Browser test configuration
 *
 * 設定 playwright 接受自簽憑證 HTTPS 伺服器
 * Configure playwright to accept self-signed certificate HTTPS server
 */
const browser = {
	enabled: true,
	headless: true,
	provider: playwright({
		// 接受自簽憑證 HTTPS 伺服器
		// Accept self-signed certificate HTTPS server
		browser: 'chromium',


		args: [
			'--ignore-certificate-errors', // 👈 強制 Chromium 忽略所有憑證錯誤
			'--allow-insecure-localhost'   // 👈 特別允許本地 localhost 的不安全連線
		],

		launchOptions: {
			// @ts-ignore
			ignoreHTTPSErrors: true,
		},
		contextOptions: {
			// @ts-ignore
			ignoreHTTPSErrors: true,
		},
	}),
	instances: [{ browser: 'chromium' }],
} satisfies InlineConfig['browser'];

// More info at: https://storybook.js.org/docs/next/writing-tests/integrations/vitest-addon
export default defineConfig({
	resolve: {
		tsconfigPaths: true,
	},
	test: {
		projects: [
			{
				extends: true,
				test: {
					name: 'unit',

					environment: 'jsdom',

					setupFiles: ['./test/vitest.setup.ts'],
					include: ['**/*.test.{ts,tsx}'],
					exclude: ['**/node_modules/**', '**/.next/**'],
				},
			},
			{
				extends: true,
				test: {
					name: 'playwright',

					browser,

					setupFiles: ['./test/vitest.setup.ts'],
					include: ['**/*.test.{ts,tsx}', '**/*.spec.{ts,tsx}'],
					exclude: ['**/node_modules/**', '**/.next/**'],
				},
			},
			{
				extends: true,
				plugins: [
					// The plugin will run tests for the stories defined in your Storybook config
					// See options at: https://storybook.js.org/docs/next/writing-tests/integrations/vitest-addon#storybooktest
					storybookTest({ configDir: path.join(__ROOT, '.storybook') }),
				],
				test: {
					name: 'storybook',
					browser,
				},
			},
		],
	},
});

[sheremet-va]

The error comes from Vitest, not the extension. Vitest modifies the instances, so its name is not properly overriden. You need to return a new object for every project. Turn your browser constant into a function that returns a new object:

const browser = () => ({ ... })

{
	extends: true,
	test: {
		name: 'playwright',

		browser: browser(),
	},
}

[bluelovers]

The error comes from Vitest, not the extension. Vitest modifies the instances, so its name is not properly overriden. You need to return a new object for every project. Turn your browser constant into a function that returns a new object:

const browser = () => ({ ... })

{
extends: true,
test: {
name: 'playwright',

  browser: browser(),

},
}

worked