LibGDX - Android Studio cannot resolve symbol
<p>we have to create an android application and we want to animate a 3d model.
Therefore, we wanted to use libgdx. So we added these lines to our build.gradle file in android studio:</p>

<pre><code>ext {
    appName = 'bream'
    gdxVersion = '1.3.1'
}

repositories {
    mavenCentral()
    mavenLocal()
    maven { url "https://jitpack.io" }
    maven { url 'https://github.com/steffenschaefer/gwt-gradle-plugin/raw/maven-repo/' }
    maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
    maven { url "https://oss.sonatype.org/content/repositories/releases/" }
}

dependencies {
    compile 'com.facebook.android:facebook-android-sdk:3.23.0'
    compile 'com.android.support:support-v4:23.0.0'
    compile 'com.google.android.gms:play-services:+'
    compile 'com.android.support:appcompat-v7:23.0.0'
    compile 'com.github.PhilJay:MPAndroidChart:v2.1.6'
    compile "com.badlogicgames.gdx:gdx:$gdxVersion"
}
</code></pre>

<p>However, it does not find "com.badlogic.gdx.backends.android" and the AndroidApplication class coming with this import. Does anyone know how to fix this?</p>

<p>Thanks in advance!</p>