Error

Webpacker::Manifest::MissingEntryError

Solution

In your package.json, add the following code: 
{
  "name": "instagram-clone-app",
  "private": true,
  "dependencies": {
    "@babel/plugin-proposal-private-methods": "^7.18.6",
    "@rails/actioncable": "^6.0.0",
    "@rails/activestorage": "^6.0.0",
    "@rails/ujs": "^6.0.0",
    "@rails/webpacker": "5.4.3",
    "turbolinks": "^5.2.0",
    "webpack": "^4.46.0",
    "webpack-cli": "^3.3.12"
  },
  "version": "0.1.0",
  "devDependencies": {
    "webpack-dev-server": "^3"
  }
}