Android Studio builds two applications for the same project simultaenously

Question

I'm making an app using Android Studio v0.5.9, which has a library project as a dependency. But, every time I run the project two apks having the same name and icon, are deployed to my device. The first apk(app) contains my main module, whereas, the second one is the library project itself. However, when I run the same project from Eclipse, only one apk is deployed and it works perfectly.

Here are some screenshots of the problem -

First App(My module) -

Second App(library project) -

top-level build.gradle file -

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.9.2'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        mavenCentral()
    }
}

main module build.gradle file -

apply plugin: 'android'

android {
    compileSdkVersion 19
    buildToolsVersion '19.0.3'
    defaultConfig {
        packageName 'com.Swap.Rooms'
        minSdkVersion 8
        targetSdkVersion 19
        versionCode 1
        versionName '1.0'
    }
    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    productFlavors {
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:support-v4:19.0.1'
    compile 'com.android.support:appcompat-v7:19.0.1'
    compile 'com.android.support:appcompat-v7:19.+'
    compile project(':lib')
}

library project build.gradle file -

apply plugin: 'android-library'

android {
    compileSdkVersion 19
    buildToolsVersion "19.0.3"

    defaultConfig {
        packageName "com.jfeinstein.jazzyviewpager"
        minSdkVersion 4
        targetSdkVersion 17
    }

    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
    }
}

dependencies {
    compile 'com.android.support:support-v4:+'
    compile files('libs/nineoldandroids-2.4.0.jar')
}

settings.gradle -

include ':app'
include ':lib'

Please help me to fix this. Thanks in advance!!

Answer 1

Maybe this will be helpful for others.

Gradle is doing manifest merge for library projects as well. So issue was to keep AndroidManifes.xml unchanged from library. It had application node for demo purposes and this node was successfully merged to main AndroidManifest.xml.

I'm going to submit issue to Google since I think it should prevent or warn about such situation.

Answer 2

Eugen Martynov answer is correct but i decided to reiterate what he said in layman's terms.

Go through your libraries and check their AndroidManifest.xml. One of them should have an <application> tag in it. Remove the tag and the double app problem will be solved.

Answer 3

The specific element in the ApplicationManifest.xml, that affects creating multiple launcher icons is the <intent-filter> containing <category android:name="android.intent.category.LAUNCHER"/>. Removing this <intent-filter> will give you control over the number of launcher icons. You can read a bit more elaborate SO answer here.