Error message TS2304: Unable to locate the variable 'title' in vite (vue) + typescript environment

My current project uses Vite (Vue) along with Typescript.

However, when I execute the command yarn build (vue-tsc --noEmit && vite build),

I encounter a series of errors similar to this one:

Error TS2304: Cannot find name 'title'. https://i.sstatic.net/661vX.png

Even though I am certain that I have defined those variables.

https://i.sstatic.net/ZkKJh.png

I suspect this issue is related to the setup in <script setup lang="ts">.

Here is my current tsconfig configuration:

{
  "compilerOptions": {
    "target": "esnext",
    "useDefineForClassFields": true,
    "module": "esnext",
    "moduleResolution": "node",
    "strict": true,
    "jsx": "preserve",
    "sourceMap": true,
    "resolveJsonModule": true,
    "esModuleInterop": true,
    "lib": [
      "esnext",
      "dom"
    ],
    "baseUrl": ".",
    "paths": {
      "@/": [
        "src/*"
      ]
    },
    "isolatedModules": true,
    "skipLibCheck": true
  },
  "include": [
    "src/**/*.ts",
    "src/**/*.d.ts",
    "src/**/*.tsx",
    "src/**/*.vue"
  ],
  "references": [
    {
      "path": "./tsconfig.node.json"
    }
  ]
}

Answer №1

Boost the performance of your Vue.js application by updating to the latest vue-tsc version using the command npm i vue-tsc -D

Answer №2

Encountered a similar problem when using typescript version 4.8.2 and an outdated vue-tsc version 0.2.3. Resolved the issue by updating to typescript 4.8.2 and vue-tsc 0.40.5, which is the most recent version available.

Answer №3

Make sure to update your package.json with the following configurations. Specifically, modify the "build" script to "vite build". This adjustment should help resolve the issue.

 "scripts": {
    "dev": "vite",
    "build": "vite build",
    "serve": "vite preview"
  },
  "dependencies": {
    "vue": "^3.2.45"
  },
  "devDependencies": {
    "@vitejs/plugin-vue": "^2.3.4",
    "typescript": "^4.9.5",
    "vite": "^2.9.15",
    "vue-tsc": "^0.31.4"
  }

Answer №4

If you need to speed up your TypeScript project, simply execute the following command:

yarn add @volar/typescript-faster

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