Unexpected token 'export' error when using @mui/x-date-pickers/internals/demo/DemoContainer

[yalinn]

Duplicates

• I have searched the existing issues

Latest version

• I have tested the latest version

Steps to reproduce 🕹

I tried this example with nextjs 12.3.4

Current behavior 😯

page doesn't load and gives an error

Expected behavior 🤔

A date-picker component

Context 🔦

I see error in below:

Your environment 🌎

npx @mui/envinfo ountput:

System:
    OS: Windows 10 10.0.22621
  Binaries:
    Node: 18.17.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.19 - ~\AppData\Roaming\npm\yarn.CMD
    npm: 9.7.2 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: Not Found
    Edge: Spartan (44.22621.2283.0), Chromium (117.0.2045.36)
  npmPackages:
    @emotion/react: ^11.11.1 => 11.11.1
    @emotion/styled: ^11.11.0 => 11.11.0
    @mui/base:  5.0.0-beta.16
    @mui/core-downloads-tracker:  5.14.10
    @mui/lab: ^5.0.0-alpha.145 => 5.0.0-alpha.145
    @mui/material: ^5.14.10 => 5.14.10
    @mui/private-theming:  5.14.10
    @mui/styled-engine:  5.14.10
    @mui/system: ^5.14.10 => 5.14.10
    @mui/types:  7.2.4
    @mui/utils: ^5.14.10 => 5.14.10
    @mui/x-data-grid: ^6.15.0 => 6.15.0
    @mui/x-date-pickers: ^6.15.0 => 6.15.0
    @mui/x-tree-view:  6.0.0-alpha.1
    @types/react: 18.0.8 => 18.0.8
    react: 18.2.0 => 18.2.0
    react-dom: 18.2.0 => 18.2.0
    typescript: 4.6.4 => 4.6.4

tsconfig.json:

{
  "compilerOptions": {
    "baseUrl": ".",
    "rootDir": "src",
    "target": "es6",
    "lib": [
      "dom",
      "dom.iterable",
      "esnext"
    ],
    "allowJs": true,
    "noImplicitAny": false,
    "skipLibCheck": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "noEmit": true,
    "esModuleInterop": true,
    "module": "esnext",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "jsx": "preserve",
    "incremental": true,
    "paths": {
      "apexcharts": [
        "./node_modules/apexcharts-clevision"
      ],
      "apexcharts/*": [
        "./node_modules/apexcharts-clevision/*"
      ],
      "@core/*": [
        "./src/@core/*"
      ],
      "@components/*": [
        "./src/@core/components/*"
      ],
      "@services/*": [
        "./src/services/*"
      ],
    }
  },
  "include": [
    "src",
    "node_modules/@types"
  ],
  "exclude": [
    "node_modules"
  ]
}

[yalinn]

i will take this issue to mui-x, I think it's wrong repo