Build android app error when added productFlavors

Is this a bug report?

Yes,

Have you read the [Contributing Guidelines]

Yes,

Environment

Environment: OS: macOS High Sierra 10.13.2 Node: 6.9.2 Yarn: 1.3.2 npm: 5.5.1 Watchman: 4.5.0 Xcode: Xcode 9.2 Build version 9C40b Android Studio: 3.0 AI-171.4443003

Packages: (wanted => installed) react: 16.0.0-alpha.12 => 16.0.0-alpha.12 react-native: ^0.48.3 => 0.48.3

Target Platform: iOS (10.3)

Steps to Reproduce

1. create android with multiple productFlavors (demo, full and etc)
2. build different flavor app on android device by running this command, react-native run-android --variant=demoDebug or react-native run-android --variant=fullDebug

flavorDimensions  "app"
productFlavors { 
        demo {
            dimension "app"
            applicationId "com.demo"
            resValue "string", "app_name", "demo"
            manifestPlaceholders = [
                    appIcon: "@mipmap/ic_launcher_demo"
            ]
            versionCode 1
            versionName "1.0"
        }
        full {
            dimension "app"
            applicationId "com.full"
            resValue "string", "app_name", "full"
            manifestPlaceholders = [
                    appIcon: "@mipmap/ic_launcher_full"
            ]
            versionCode 1
            versionName "1.0"
        }
}

Expected Behavior

expect different flavors of app will build on android device,

Actual Behavior

the build failed and i, i get this error Error: Activity class {com.todo/com.todo.MainActivity} does not exist,

but I’m able to build the app successfully if i remove the productFlavors {}

any advice will be appreciate.

[samzmann]

I ran into this issue and found some way to make it work: I have two product flavors

• prod, with applicationId “com.yetno.yetnoapp” (which is the main app id)
• dev, with applicationId “com.yetno.yetno_app”

When building and running dev (react-native run-android --variant=devDebug) I was getting the error described in this issue. Then I noticed, if I build the prod variant first and have it installed on the device, building and installing the dev variant works fine. So the steps are:

1. cd android && ./gradlew clean
2. cd ..
3. react-native run-android --variant=prodDebug
4. react-native run-android --variant=devDebug

So this is not really an answer, but it worked for me and maybe it can help some of you guys out 😃

[johanforssell]

I’m writing new versions of old apps, and thus I have inherited old app id’s.

My code have the package com.common.package (in source files and AndroidManifest.xml).

My build.gradle contains

    buildTypes {
        debug {
        }
        release {
            minifyEnabled enableProguardInReleaseBuilds
            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
        }
    }

    flavorDimensions "appName"
    productFlavors {
        appAAA {
            dimension "appName"
            applicationId "com.AAA.app"
            versionCode 100
            versionName "3.0.0"
        }
        appBBB {
            dimension "appName"
            applicationId "com.BBB.app"
            versionCode 100
            versionName '3.0.0'
        }
    }

First the app can be installed with gradlew

cd android && ./gradlew installAppBBBDebug

The I can start it manually with

adb -s emulator-5554 shell am start -n com.BBB.app/com.common.package.MainActivity

This is a bloody hassle. I would rather not have to mess with it like this.