mkorszun mkorszun - 3 months ago 9
Java Question

Transitive dependencies not resolved for aar library using gradle

I have investigated a while and probably saw most popular answers here related to aar and transitive dependencies but somehow it is still not clear for me how to make this working.

So:

I have android library with given gradle config:

apply plugin: 'android-library'
apply plugin: 'android-maven'

version = "1.0.0"
group = "com.somepackage"

buildscript {
repositories {
mavenCentral()
mavenLocal()
}

dependencies {
classpath 'com.github.dcendents:android-maven-plugin:1.0'
}
}

android {
compileSdkVersion 19
buildToolsVersion '19.0.3'

defaultConfig {
minSdkVersion 10
}
}

repositories {
maven { url 'http://www.bugsense.com/gradle/' }
}

dependencies {
provided 'com.google.android.gms:play-services:+'
provided 'com.android.support:appcompat-v7:+'
compile 'com.google.code.gson:gson:2.2.4'
compile 'com.bugsense.trace:bugsense:3.6'
compile 'commons-net:commons-net:3.3'
}


Then I am deploying it to local maven repo with
gradle install
. POM file of the deployed library looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>com.sprezzat</groupId>
<artifactId>app</artifactId>
<version>1.0.0</version>
<packaging>aar</packaging>
<dependencies>
<dependency>
<groupId>com.bugsense.trace</groupId>
<artifactId>bugsense</artifactId>
<version>3.6</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>3.3</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.2.4</version>
<scope>compile</scope>
</dependency>
</dependencies>
</project>


And finally gradle config of my android application using above library as a dependency:

buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.9.+'
}
}
apply plugin: 'android'

repositories {
mavenCentral()
mavenLocal()
}

android {
compileSdkVersion 15
buildToolsVersion "19.0.2"

defaultConfig {
minSdkVersion 10
targetSdkVersion 18
}
}

dependencies {
compile 'com.google.android.gms:play-services:+'
compile 'com.android.support:appcompat-v7:+'
compile 'com.somepackage:LIBRARY_NAME:1.0.0@aar'
}


And after deploying application on phone I am getting
NoClassDefFoundError
for classes belonging to compile dependencies of my android library.

Inspecting my android application dependencies using
gradle dependencies
:

apk - Classpath packaged with the compiled main classes.
+--- com.google.android.gms:play-services:+ -> 4.3.23
| \--- com.android.support:support-v4:19.0.1 -> 19.1.0
+--- com.android.support:appcompat-v7:+ -> 19.1.0
| \--- com.android.support:support-v4:19.1.0
\--- com.somepackage:LIBRARY_NAME:1.0.0


According to above tree, all transitive dependencies are not detected. Where is the problem and how should it be done correctly?

Answer

I have solved my problem by setting transitive attribute for my aar dependency:

compile ('com.somepackage:LIBRARY_NAME:1.0.0@aar'){
    transitive=true
}