Android library with dependencies

Question

I built an SDK for a project that needs Gson to function in order to serialize and deserialize complicated requests and responses from the backend. When I add my library as an AAR file in a test application I get this error when it tries to run: java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/gson/Gson. It goes away if I add a Gson dependency to my test application. My library gradle file looks like:

apply plugin: 'com.android.library'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.0"

    defaultConfig {
        minSdkVersion 19
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.google.code.gson:gson:2.8.0'
}

but it seems just putting the dependency there is insufficient. What do I need to do in my library to make it so other users of my sdk don't have to add that as an additional dependency?

Android library with dependencies

0 Answers