404 Error Cannot find entry file index.js - react-native

Question

I'm getting this error:
The development server returned response 404. Cannot find entry file
index.js.
Here is my folder structure:
package.json
{
"name": "vepo",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "node node_modules/react-native/local-cli/cli.js start",
"test": "jest"
},
"rnpm": {
"assets": [
"./app/fonts"
]
},
"jest": {
"preset": "react-native",
"moduleNameMapper": {
"\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/__mocks__/fileMock.js",
"\\.(css|less)$": "<rootDir>/__mocks__/styleMock.js"
}
},
"dependencies": {
"flow-typed": "^2.0.0",
"generator-rn-toolbox": "^2.2.0",
"imagemagick": "^0.1.3",
"immutable": "^3.8.1",
"native-base": "2.3.0",
"prop-types": "^15.5.10",
"react": "16.0.0",
"react-native": "0.50.3",
"react-native-aws3": "^0.0.8",
"react-native-blur": "^3.1.3",
"react-native-communications": "^2.2.1",
"react-native-drawer": "^2.3.0",
//"react-native-fbsdk": "git://github.com/facebook/react-native-fbsdk#065507aa1d2b8b0b6cb50d13117694123f8303fa",
"react-native-git-upgrade": "^0.2.7",
"react-native-image-picker": "^0.26.4",
"react-native-interactable": "^0.1.2",
"react-native-mail": "^3.0.2",
"react-native-maps": "^0.16.4",
"react-native-modal": "^2.3.2",
"react-native-modalbox": "^1.3.9",
"react-native-multiple-choice": "^0.0.8",
"react-native-navigation": "^1.1.100",
"react-native-off-canvas-menu": "^0.1.31",
"react-native-optimized-flatlist": "^1.0.1",
"react-native-redux-router": "^1.0.7",
"react-native-select-multiple": "^1.0.3",
"react-native-side-menu": "^0.20.1",
"react-native-vector-icons": "^4.4.0",
"react-navigation": "^1.0.0-beta.11",
"react-redux": "^5.0.3",
"redux": "^3.6.0",
"redux-immutable": "^4.0.0",
"redux-observable": "^0.14.1",
"reselect": "^3.0.0",
"rxjs": "^5.2.0",
"yoga": "^0.0.0"
},
"devDependencies": {
"babel-eslint": "^7.1.1",
"babel-jest": "19.0.0",
"babel-plugin-module-resolver": "^2.7.0",
"babel-preset-react-native": "3.0.1",
"eslint": "^3.17.0",
"eslint-plugin-flowtype": "^2.30.3",
"eslint-plugin-jsx": "^0.0.2",
"eslint-plugin-react": "^6.10.0",
"eslint-plugin-react-native": "^2.3.1",
"flow-bin": "^0.42.0",
"jest": "19.0.2",
"jest-cli": "^19.0.2",
"react-test-renderer": "~15.4.1",
"redux-devtools": "^3.3.2",
"remote-redux-devtools": "^0.5.7"
}
}
What am I doing wrong, to cause that error?

Answer 1

Create an index.js file in root directory of your project and copy your index.android.js or index.ios.js into it.
after RN 49 by default, we don't have different entries for ios and android. so we have just one index.js file that both android and ios use it.