SyntaxError: Unexpected token '<'

[damian-guh]

After deploy to vercel and correct build I'm getting Unhandled error Encountered an unhandled error in this Studio. SyntaxError: Unexpected token '<'.
Locally everything works fine. I added only schema files.

Demo

"dependencies": {
    "@sanity/base": "^2.31.1",
    "@sanity/core": "^2.31.1",
    "@sanity/default-layout": "^2.31.1",
    "@sanity/default-login": "^2.31.1",
    "@sanity/desk-tool": "^2.31.1",
    "@sanity/eslint-config-studio": "^2.0.0",
    "@sanity/vision": "^2.31.1",
    "eslint": "^8.6.0",
    "prop-types": "^15.7",
    "react": "^17.0",
    "react-dom": "^17.0",
    "styled-components": "^5.2.0"
  },
  "devDependencies": {
    "@sanity/cli": "^2.31.1"
  },

[damian-guh]

Reinstall sanity solved problem