"App not installed" error after building android app

after I ran expo build:android i got the apk file built successfully but when I try to install it in many devices, it is not being installed and it shows “App not installed” error.

and here is my package.json:

{ “name”: “some-app”, “main”: “node_modules/expo/AppEntry.js”, “private”: true, “scripts”: { “start”: “expo start”, “android”: “expo start --android”, “ios”: “expo start --ios”, “eject”: “expo eject” }, “dependencies”: { “axios”: “^0.18.0”, “expo”: “^31.0.2”, “react”: “16.5.0”, “react-native”: “https://github.com/expo/react-native/archive/sdk-31.0.0.tar.gz”, “react-navigation”: “^3.1.2”, “react-redux”: “^6.0.0”, “redux”: “^4.0.1”, “redux-persist”: “^5.10.0” }, “devDependencies”: { “babel-preset-expo”: “^5.0.0” } } `

[moahammadalt]

the problem was in the android packager name in my app.json

so it was like that:

“package”: “com.<myName>.<appName>” i replaced myName with the appName like that :

“package”: “com.<appName>.<appName>” and it worked like a magic and I was able to successfully build and install the app on multiple devices

[cruzach]

Awesome! Thanks for sharing the solution here 😄