Error with running ReactJS/TailwindCSS/Heroku: React Refresh runtime should not be included in the production bundle

user_3348240 0
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Working on a webfolio in ReactJS using TailwindCSS. Deployed it to Heroku, builds successfully, but opening the App always gives the error: ERROR: React Refresh runtime should not be included in the production bundle.

Really not sure what I could've done wrong other than not configure tailwindcss to be deployable. I don't have any devdependencies, they're all dependencies.

package.json:

  "name": "webfolio",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@craco/craco": "^6.0.0",
    "@fortawesome/fontawesome-svg-core": "^1.2.32",
    "@fortawesome/free-brands-svg-icons": "^5.15.1",
    "@fortawesome/free-regular-svg-icons": "^5.15.1",
    "@fortawesome/free-solid-svg-icons": "^5.15.1",
    "@fortawesome/react-fontawesome": "^0.1.14",
    "@tailwindcss/forms": "^0.2.1",
    "@tailwindcss/postcss7-compat": "^2.0.2",
    "@testing-library/jest-dom": "^5.11.8",
    "@testing-library/react": "^11.2.2",
    "@testing-library/user-event": "^12.6.0",
    "autoprefixer": "^9.8.6",
    "postcss": "^7.0.35",
    "react": "^17.0.1",
    "react-dom": "^17.0.1",
    "react-scripts": "4.0.1",
    "react-spring": "^8.0.27",
    "tailwindcss": "npm:@tailwindcss/postcss7-compat@^2.0.2",
    "web-vitals": "^0.2.4"
  },
  "scripts": {
    "start": "craco start",
    "build": "craco build",
    "test": "craco test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}
reactjs heroku deployment
3 Answers

I had the same error right now, I know this post is few months old but still here is my solution :

Under heroku app> settings >Webpack

And on next push or deploying again will make it work. At least it did for me.

user_128622970
user_36700310

have you checked the package.json scripts, since it has been renamed to CRACO by tailwind.

"start": "node server.js"

user_144257030
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