Error type 3. Activity class {com.awesome_project/ com.awesome_project.MainActivity} does not exist in react native (Android device)

Question

I\'ve created the project using the following command.

react-native init Awesome_Project

I\'ve started the packager using the following com

Answer 1

When working with react-native-config, I ran into this issue when using applicationIdSuffix with productFlavors.

adding --appIdSuffix=[YOUR_FLAVOR] to my react-native run-android commands did the job. e.g

...
    flavorDimensions "env"
    productFlavors {
        dev {
            resValue "string", "app_name", "[DEV] My App"
            applicationIdSuffix ".dev"
        }
        staging {
            resValue "string", "app_name", "[STG] My App"
            applicationIdSuffix ".staging"
        }
        prod {
            resValue "string", "app_name", "My App"
        }
    }
...

...
"scripts": {
    "android": "react-native run-android --variant=devDebug --appIdSuffix=dev",
    "android:staging": "react-native run-android --variant=stagingDebug --appIdSuffix=staging",
    "android:prod": "react-native run-android --variant=prodDebug",
    "android:staging:release": "react-native run-android --variant=stagingRelease --appIdSuffix=staging",
    "android:prod:release": "react-native run-android --variant=prodRelease",
},
...