Module not found during vercel deployment

[jacklvd (JV)]

Hello all!
I’m currently building a web page to use for summary content (just a simple one for learning). I have deployed quite a few projects with vercel but I kept getting the error of ‘module not found’ during deployment for this one. I built successfully on my local machine. What seems to be the problem and how do I fix this? I can elaborate further if any elaboration is needed. Thank you so much!

my package.json

{
  "name": "frontend",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start",
    "lint": "next lint",
    "format": "prettier --write ."
  },
  "dependencies": {
    "@hookform/resolvers": "^5.0.1",
    "@radix-ui/react-dropdown-menu": "^2.1.6",
    "@radix-ui/react-label": "^2.1.2",
    "@radix-ui/react-select": "^2.1.6",
    "@radix-ui/react-separator": "^1.1.2",
    "@radix-ui/react-slot": "^1.1.2",
    "@radix-ui/react-tabs": "^1.1.3",
    "@radix-ui/react-toggle": "^1.1.2",
    "axios": "^1.8.4",
    "class-variance-authority": "^0.7.1",
    "clsx": "^2.1.1",
    "lucide-react": "^0.487.0",
    "next": "15.2.4",
    "next-themes": "^0.4.6",
    "prettier": "^3.5.3",
    "react": "^19.0.0",
    "react-dom": "^19.0.0",
    "react-hook-form": "^7.55.0",
    "react-markdown": "^10.1.0",
    "remark-gfm": "^4.0.1",
    "sonner": "^2.0.3",
    "tailwind-merge": "^3.1.0",
    "tw-animate-css": "^1.2.5",
    "zod": "^3.24.2"
  },
  "devDependencies": {
    "@eslint/eslintrc": "^3",
    "@tailwindcss/postcss": "^4",
    "@types/node": "^20",
    "@types/react": "^19",
    "@types/react-dom": "^19",
    "@types/react-syntax-highlighter": "^15.5.13",
    "eslint": "^9",
    "eslint-config-next": "15.2.4",
    "react-syntax-highlighter": "^15.6.1",
    "tailwindcss": "^4",
    "typescript": "^5"
  }
}

the tsconfig.json

{
  "compilerOptions": {
    "target": "ES2017",
    "lib": ["dom", "dom.iterable", "esnext"],
    "allowJs": true,
    "skipLibCheck": true,
    "strict": true,
    "noEmit": true,
    "esModuleInterop": true,
    "module": "esnext",
    "moduleResolution": "bundler",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "jsx": "preserve",
    "incremental": true,
    "plugins": [
      {
        "name": "next"
      }
    ],
    "paths": {
      "@/*": ["./*"]
    }
  },
  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
  "exclude": ["node_modules", "**/node_modules/*"]
}

[anshumanb (Anshuman Bhardwaj)]

Hi @jacklvd, welcome to the Vercel Community!

Sorry that you are facing this issue. Can you try running vercel build in the CLI?

Can you please share your public repo or a minimal reproducible example. That will let us all work together from the same code to figure out what’s going wrong.

[jacklvd (JV)]

yes sure @anshumanb, this is the link to the project repo: GitHub - jacklvd/smart-sheet

[miguelcabs]

it looks like maybe your lib isn’t checked into source control? I see it dimmed on the screenshot and I don’t see it in the repo either?

[miguelcabs]

.gitignore line 17

[jacklvd (JV)]

oh thank you!!! it works now! i have 2 gitignore and did not check that one!