Upgrade to Tailwind v4 (include tw-animate-css). Change both globals.css and package.json. Upgrade the tailwind postcss plugin to @tailwindcss/postcss. Ensure globals.css contains shadcn :root, .dark, and @theme design tokens. Use those semantic design tokens throughout the generation, not hardcoded colors. Make any other changes as needed to migrate to Tailwind v4. Do NOT wrap :root, .dark, and @theme in "@layer base". If there are shadcn colors using just channel values, wrap them in hsl() for the new version in the :root and .dark sections (if the values are already wrapped in a color function, no need to wrap them again).
Let me first read the current files to understand what needs to change.
Now let me also check the lib/utils.ts and any component files that might need updates:
Now I have all the context. Let me make the Tailwind v4 migration changes:
Now let me rewrite globals.css for Tailwind v4:
Now delete the tailwind.config.ts since Tailwind v4 uses CSS-based configuration:
The tailwind.config.ts is already gone. Let me verify the final state of the files:
I see tailwindcss-animate is still in dependencies (added by something else). Let me remove it:
Tailwind v4への移行が完了しました。主な変更点は以下の通りです：
tailwindcssを^4.1.3に、@tailwindcss/postcssを追加、tailwindcss-animateをtw-animate-cssに置き換え、autoprefixerを削除tailwindcssから@tailwindcss/postcssに変更@tailwindディレクティブを@import "tailwindcss"と@import "tw-animate-css"に置き換え、:rootと.darkのカラー値をHSL関数でラップ、@theme inlineブロックでshadcnのデザイントークンを定義、@applyを使っていたカスタムCSSを標準CSSプロパティに書き換えpackage.jsonに不正なJSON（末尾のカンマ）があるため修正します。
framer-motionの後にあった末尾のカンマと空行を削除し、JSONの構文エラーを修正しました。これでpackage.jsonが正しくパースされるようになります。
The code returns the following error:
addJSONDependency: Invalid JSON in /@v0/package.json: Expected double-quoted property name in JSON at position 2008 (line 63 column 3) . Source: {
"name": "my-v0-project",
"version": "0.1.0",
"private": true,
"scripts": {
"dev": "next dev",
"build": "next build",
"start": "next start",
"lint": "eslint ."
},
"dependencies": {
"@hookform/resolvers": "^3.10.0",
"@radix-ui/react-accordion": "1.2.2",
"@radix-ui/react-alert-dialog": "1.1.4",
"@radix-ui/react-aspect-ratio": "1.1.1",
"@radix-ui/react-avatar": "1.1.2",
"@radix-ui/react-checkbox": "1.1.3",
"@radix-ui/react-collapsible": "1.1.2",
"@radix-ui/react-context-menu": "2.2.4",
"@radix-ui/react-dialog": "1.1.4",
"@radix-ui/react-dropdown-menu": "2.1.4",
"@radix-ui/react-hover-card": "1.1.4",
"@radix-ui/react-label": "2.1.1",
"@radix-ui/react-menubar": "1.1.4",
"@radix-ui/react-navigation-menu": "1.2.3",
"@radix-ui/react-popover": "1.1.4",
"@radix-ui/react-progress": "1.1.1",
"@radix-ui/react-radio-group": "1.2.2",
"@radix-ui/react-scroll-area": "1.2.2",
"@radix-ui/react-select": "2.1.4",
"@radix-ui/react-separator": "1.1.1",
"@radix-ui/react-slider": "1.2.2",
"@radix-ui/react-slot": "1.1.1",
"@radix-ui/react-switch": "1.1.2",
"@radix-ui/react-tabs": "1.1.2",
"@radix-ui/react-toast": "1.2.4",
"@radix-ui/react-toggle": "1.1.1",
"@radix-ui/react-toggle-group": "1.1.1",
"@radix-ui/react-tooltip": "1.1.6",
"@vercel/analytics": "1.3.1",
"tw-animate-css": "^1.2.5",
"class-variance-authority": "^0.7.1",
"clsx": "^2.1.1",
"cmdk": "1.0.4",
"date-fns": "4.1.0",
"embla-carousel-react": "8.5.1",
"input-otp": "1.4.1",
"lucide-react": "^0.454.0",
"next": "15.5.10",
"next-themes": "^0.4.6",
"react": "19.2.0",
"react-day-picker": "9.8.0",
"react-dom": "19.2.0",
"react-hook-form": "^7.60.0",
"react-resizable-panels": "^2.1.7",
"recharts": "2.15.4",
"sonner": "^1.7.4",
"tailwind-merge": "^3.3.1",
"vaul": "^1.1.2",
"zod": "3.25.76",
"framer-motion": "12.34.3",
},
"devDependencies": {
"@types/node": "^22",
"@types/react": "^19",
"@types/react-dom": "^19",
"@tailwindcss/postcss": "^4.1.3",
"postcss": "^8.5",
"tailwindcss": "^4.1.3",
"typescript": "^5"
}
}
Revise the code to address the error.
I was previewing: /
package.jsonの末尾にあった不正なトレイリングカンマを削除しました。"framer-motion": "12.34.3", の後の余分なカンマがJSONパースエラーの原因でした。これでpackage.jsonが正しいJSON形式になり、エラーが解消されます。