Autocomplete not working on dev server start or installing

[Waradu]

What version of VS Code are you using?

For example: v1.100.2

What version of Tailwind CSS IntelliSense are you using?

For example: v0.14.17

What version of Tailwind CSS are you using?

For example: v4.1.7

What package manager are you using?

npm

What operating system are you using?

Windows

Tailwind config

Nothing custom exactly this:
https://tailwindcss.com/docs/installation/framework-guides/nuxt

VS Code settings

Fresh profile. No Extensions except "bradlc.vscode-tailwindcss" (change language mode of .vue file to html to test)

Reproduction URL

https://github.com/Waradu/tw-ext-bug

Describe your issue

Autocomplete works fine normally:

As soon as the dev server is started or npm install ... it stops working.

ctrl + shift + p > Developer: Reload Window while running is a temporary fix but still annoying.

Output

On reload/first open project:

Locating server…
Booting server...
Setting up server…
Listening for messages…
Searching for Tailwind CSS projects in the workspace's folders.
{"tailwind":{"version":"4.1.7","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false},"path":"x:/intbox/tailwind/assets/css/main.css"}
[Global] Creating projects: [{"folder":"X:\\intbox\\tailwind","config":"X:/intbox/tailwind/assets/css/main.css","selectors":[{"pattern":"X:/intbox/tailwind/assets/css/main.css","priority":0},{"pattern":"X:/intbox/tailwind/app.vue","priority":1},{"pattern":"X:/intbox/tailwind/nuxt.config.ts","priority":1},{"pattern":"X:/intbox/tailwind/package.json","priority":1},{"pattern":"X:/intbox/tailwind/tsconfig.json","priority":1},{"pattern":"X:/intbox/tailwind/*","priority":1},{"pattern":"X:/intbox/tailwind/assets/**/*.{aspx,astro,cjs,css,cts,eex,erb,gjs,gts,haml,handlebars,hbs,heex,html,jade,js,json,jsx,liquid,md,mdx,mjs,mts,mustache,njk,nunjucks,php,pug,py,razor,rb,rhtml,rs,slim,svelte,tpl,ts,tsx,twig,vue}","priority":1},{"pattern":"X:/intbox/tailwind/assets/css/**","priority":2},{"pattern":"X:/intbox/tailwind/**","priority":4},{"pattern":"X:/intbox/tailwind/**","priority":5}],"user":false,"tailwind":{"version":"4.1.7","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false}}]
[Global] Preparing projects...
[Global] Initializing projects...
[assets\css\main.css] Initializing...
[Global] Adding watch patterns: X:/intbox/tailwind/assets/css/main.css, X:/intbox/tailwind/assets/css, X:/intbox/tailwind/assets, X:/intbox/tailwind, X:/intbox, X:/
[assets\css\main.css] supported features: ["css-at-theme","layer:base","content-list","source-inline","source-not"]
[assets\css\main.css] Loaded tailwindcss v4.1.7: x:\intbox\tailwind\node_modules\tailwindcss
[assets\css\main.css] Building...
[Global] Adding watch patterns: x:\intbox\tailwind\node_modules\tailwindcss\index.css
[Global] Initialized 1 projects

After starting dev server or installing:

Locating server…
Booting server...
Setting up server…
Listening for messages…
Searching for Tailwind CSS projects in the workspace's folders.
{"tailwind":{"version":"4.1.7","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false},"path":"x:/intbox/tailwind/assets/css/main.css"}
[Global] Creating projects: [{"folder":"X:\\intbox\\tailwind","config":"X:/intbox/tailwind/assets/css/main.css","selectors":[{"pattern":"X:/intbox/tailwind/assets/css/main.css","priority":0},{"pattern":"X:/intbox/tailwind/app.vue","priority":1},{"pattern":"X:/intbox/tailwind/nuxt.config.ts","priority":1},{"pattern":"X:/intbox/tailwind/package.json","priority":1},{"pattern":"X:/intbox/tailwind/tsconfig.json","priority":1},{"pattern":"X:/intbox/tailwind/*","priority":1},{"pattern":"X:/intbox/tailwind/assets/**/*.{aspx,astro,cjs,css,cts,eex,erb,gjs,gts,haml,handlebars,hbs,heex,html,jade,js,json,jsx,liquid,md,mdx,mjs,mts,mustache,njk,nunjucks,php,pug,py,razor,rb,rhtml,rs,slim,svelte,tpl,ts,tsx,twig,vue}","priority":1},{"pattern":"X:/intbox/tailwind/assets/css/**","priority":2},{"pattern":"X:/intbox/tailwind/**","priority":4},{"pattern":"X:/intbox/tailwind/**","priority":5}],"user":false,"tailwind":{"version":"4.1.7","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false}}]
[Global] Preparing projects...
[Global] Initializing projects...
[assets\css\main.css] Initializing...
[Global] Adding watch patterns: X:/intbox/tailwind/assets/css/main.css, X:/intbox/tailwind/assets/css, X:/intbox/tailwind/assets, X:/intbox/tailwind, X:/intbox, X:/
[assets\css\main.css] supported features: ["css-at-theme","layer:base","content-list","source-inline","source-not"]
[assets\css\main.css] Loaded tailwindcss v4.1.7: x:\intbox\tailwind\node_modules\tailwindcss
[assets\css\main.css] Building...
[Global] Adding watch patterns: x:\intbox\tailwind\node_modules\tailwindcss\index.css
[Global] Initialized 1 projects
----------
RESTARTING
----------
[Info  - 4:43:15 PM] [GLOBAL] No matching project for document {
  fsPath: 'X:\\intbox\\tailwind\\app.vue',
  normalPath: '/x:/intbox/tailwind/app.vue'
}
Searching for Tailwind CSS projects in the workspace's folders.
{"tailwind":{"version":"4.1.7","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false},"path":"x:/intbox/tailwind/assets/css/main.css"}
[Global] Creating projects: [{"folder":"X:\\intbox\\tailwind","config":"X:/intbox/tailwind/assets/css/main.css","selectors":[{"pattern":"X:/intbox/tailwind/assets/css/main.css","priority":0},{"pattern":"X:/intbox/tailwind/app.vue","priority":1},{"pattern":"X:/intbox/tailwind/nuxt.config.ts","priority":1},{"pattern":"X:/intbox/tailwind/package.json","priority":1},{"pattern":"X:/intbox/tailwind/tsconfig.json","priority":1},{"pattern":"X:/intbox/tailwind/*","priority":1},{"pattern":"X:/intbox/tailwind/assets/**/*.{aspx,astro,cjs,css,cts,eex,erb,gjs,gts,haml,handlebars,hbs,heex,html,jade,js,json,jsx,liquid,md,mdx,mjs,mts,mustache,njk,nunjucks,php,pug,py,razor,rb,rhtml,rs,slim,svelte,tpl,ts,tsx,twig,vue}","priority":1},{"pattern":"X:/intbox/tailwind/assets/css/**","priority":2},{"pattern":"X:/intbox/tailwind/**","priority":4},{"pattern":"X:/intbox/tailwind/**","priority":5}],"user":false,"tailwind":{"version":"4.1.7","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false}}]
[Global] Preparing projects...
[Global] Initializing projects...
[assets\css\main.css] Initializing...
[Global] Adding watch patterns: X:/intbox/tailwind/assets/css/main.css, X:/intbox/tailwind/assets/css, X:/intbox/tailwind/assets, X:/intbox/tailwind, X:/intbox, X:/
[assets\css\main.css] supported features: ["css-at-theme","layer:base","content-list","source-inline","source-not"]
[assets\css\main.css] Loaded tailwindcss v4.1.7: x:\intbox\tailwind\node_modules\tailwindcss
[assets\css\main.css] Building...
[Global] Adding watch patterns: x:\intbox\tailwind\node_modules\tailwindcss\index.css
[Global] Initialized 1 projects
----------
RESTARTING
----------
[Info  - 4:43:16 PM] [GLOBAL] No matching project for document {
  fsPath: 'X:\\intbox\\tailwind\\app.vue',
  normalPath: '/x:/intbox/tailwind/app.vue'
}
Searching for Tailwind CSS projects in the workspace's folders.
{"tailwind":{"version":"4.1.7","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false},"path":"x:/intbox/tailwind/assets/css/main.css"}
[Global] Creating projects: [{"folder":"X:\\intbox\\tailwind","config":"X:/intbox/tailwind/assets/css/main.css","selectors":[{"pattern":"X:/intbox/tailwind/assets/css/main.css","priority":0},{"pattern":"X:/intbox/tailwind/app.vue","priority":1},{"pattern":"X:/intbox/tailwind/nuxt.config.ts","priority":1},{"pattern":"X:/intbox/tailwind/package.json","priority":1},{"pattern":"X:/intbox/tailwind/tsconfig.json","priority":1},{"pattern":"X:/intbox/tailwind/*","priority":1},{"pattern":"X:/intbox/tailwind/assets/**/*.{aspx,astro,cjs,css,cts,eex,erb,gjs,gts,haml,handlebars,hbs,heex,html,jade,js,json,jsx,liquid,md,mdx,mjs,mts,mustache,njk,nunjucks,php,pug,py,razor,rb,rhtml,rs,slim,svelte,tpl,ts,tsx,twig,vue}","priority":1},{"pattern":"X:/intbox/tailwind/assets/css/**","priority":2},{"pattern":"X:/intbox/tailwind/**","priority":4},{"pattern":"X:/intbox/tailwind/**","priority":5}],"user":false,"tailwind":{"version":"4.1.7","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false}}]
[Global] Preparing projects...
[Global] Initializing projects...
[assets\css\main.css] Initializing...
[Global] Adding watch patterns: X:/intbox/tailwind/assets/css/main.css, X:/intbox/tailwind/assets/css, X:/intbox/tailwind/assets, X:/intbox/tailwind, X:/intbox, X:/
[assets\css\main.css] supported features: ["css-at-theme","layer:base","content-list","source-inline","source-not"]
[assets\css\main.css] Loaded tailwindcss v4.1.7: x:\intbox\tailwind\node_modules\tailwindcss
[assets\css\main.css] Building...
[Global] Adding watch patterns: x:\intbox\tailwind\node_modules\tailwindcss\index.css
[Global] Initialized 1 projects

[Waradu]

Also happend to @XurxoMF in the tauri dc: https://discord.com/channels/616186924390023171/1373028287504191548

[thecrypticace]

Notes for me in the am:

• Based on the logs the initialization completes as expected
• With the above project the issue is not reproducible on macOS or Windows before/after npm install or before/after npm run dev
• Screenshot shows document colors did not get cleared — this means either there's an invalidation issue or the server is working but completions aren't being returned
• This projet DOES reproduce (tested on macOS but likely Windows is affected as well): https://github.com/XurxoMF/rustory
• Hovers appear work but completions stop working even in new files

[abdellah711]

I experienced a similar issue, in my case the autocomplete wasn't working at all, even without running any npm commands
downgrading to version 0.14.16 resolved the problem for me

[functasti]

I experienced a similar issue with v0.14.17 on Ubuntu with VS Code 1.100.1, but I don't think my issue was related to the dev server or installation since I've been doing both multiple times throughout the past day and didn't notice any correlation. However, I did encounter an instance where intellisense suggestions stopped working, and restarting the IDE resolved the issue. Does VS Code log unhandled exceptions or crashes in extensions?

[CharlesAttend]

I can confirm that reverting to version 0.14.16 resolves the IntelliSense issues.
The odd part is that IntelliSense appears to work until I run Nuxt dev 🤔

For context:

• I'm using a simplifier Tailwind config than the OP
• Tailwind CSS version: v4
• VSCode info: 1.100.2, 848b80aeb52026648a8ff9f7c45a9b0a80641e2e, x64
• OS: Arch Linux

VS Code extension output before starting the dev server:

Locating server…
Booting server...
Setting up server…
Listening for messages…
Searching for Tailwind CSS projects in the workspace's folders.
{"tailwind":{"version":"4.1.4","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false},"path":"/home/charles/Documents/nectar/front/assets/css/main.css"}
[Global] Creating projects: [{"folder":"/home/charles/Documents/nectar","config":"/home/charles/Documents/nectar/front/assets/css/main.css","selectors":[{"pattern":"/home/charles/Documents/nectar/front/assets/css/main.css","priority":0},{"pattern":"/home/charles/Documents/nectar/front/assets/css/**","priority":2},{"pattern":"/home/charles/Documents/nectar/front/**","priority":4},{"pattern":"/home/charles/Documents/nectar/**","priority":5}],"user":false,"tailwind":{"version":"4.1.4","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false}}]
[Global] Preparing projects...
[Global] Initializing projects...
[front/assets/css/main.css] Initializing...
[Global] Adding watch patterns: /home/charles/Documents/nectar/front/assets/css/main.css, /home/charles/Documents/nectar/front/assets/css, /home/charles/Documents/nectar/front/assets, /home/charles/Documents/nectar/front, /home/charles/Documents/nectar
[front/assets/css/main.css] supported features: ["css-at-theme","layer:base","content-list","source-inline","source-not"]
[front/assets/css/main.css] Loaded tailwindcss v4.1.4: /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected]/node_modules/tailwindcss
[front/assets/css/main.css] Building...
[Global] Adding watch patterns: /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected]/node_modules/tailwindcss/index.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/index.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/theme/colors.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/backface.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/delay.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/direction.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/duration.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/fillMode.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/iterationCount.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/playState.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/timingFunction.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/preset.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/enterleave.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/animation.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/keyframes.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/variants.css
[Global] Initialized 1 projects

Then when starting Nuxt dev server those new line appear

----------
RESTARTING
----------
[Info  - 3:43:00 PM] [GLOBAL] No matching project for document {
  fsPath: '/home/charles/Documents/nectar/front/components/composition/SearchTextResults.vue',
  normalPath: '/home/charles/Documents/nectar/front/components/composition/SearchTextResults.vue'
}
Searching for Tailwind CSS projects in the workspace's folders.
{"tailwind":{"version":"4.1.4","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false},"path":"/home/charles/Documents/nectar/front/assets/css/main.css"}
[Global] Creating projects: [{"folder":"/home/charles/Documents/nectar","config":"/home/charles/Documents/nectar/front/assets/css/main.css","selectors":[{"pattern":"/home/charles/Documents/nectar/front/assets/css/main.css","priority":0},{"pattern":"/home/charles/Documents/nectar/front/assets/css/**","priority":2},{"pattern":"/home/charles/Documents/nectar/front/**","priority":4},{"pattern":"/home/charles/Documents/nectar/**","priority":5}],"user":false,"tailwind":{"version":"4.1.4","features":["css-at-theme","layer:base","content-list","source-inline","source-not"],"isDefaultVersion":false}}]
[Global] Preparing projects...
[Global] Initializing projects...
[front/assets/css/main.css] Initializing...
[Global] Adding watch patterns: /home/charles/Documents/nectar/front/assets/css/main.css, /home/charles/Documents/nectar/front/assets/css, /home/charles/Documents/nectar/front/assets, /home/charles/Documents/nectar/front, /home/charles/Documents/nectar
[front/assets/css/main.css] supported features: ["css-at-theme","layer:base","content-list","source-inline","source-not"]
[front/assets/css/main.css] Loaded tailwindcss v4.1.4: /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected]/node_modules/tailwindcss
[front/assets/css/main.css] Building...
[Global] Adding watch patterns: /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected]/node_modules/tailwindcss/index.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/index.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/theme/colors.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/backface.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/delay.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/direction.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/duration.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/fillMode.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/iterationCount.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/playState.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/timingFunction.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/preset.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/enterleave.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/animation.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/keyframes.css, /home/charles/Documents/nectar/front/node_modules/.pnpm/[email protected][email protected]/node_modules/tailwindcss-primeui/v4/utils/variants.css
[Global] Initialized 1 projects

[Waradu]

@CharlesAttend I think you meant to say 0.14.16 instead of 0.14.6. But yes downgrading to 0.14.16 also fixed it to me.