When I try to compile my app I get a following error
Error:Execution failed for task ':app:dexDebug'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.7.0_60\bin\java.exe'' finished with non-zero exit value 2
If I get rid of Facebook Android SDK it compiles without a problem.
My build.gradle:
apply plugin: 'com.android.application'
android {
    compileSdkVersion 21 //tried 19 and 22 changing targetSdkVersion and buildToolsVersion accordingly
    buildToolsVersion "21.1.2"
    defaultConfig {
        applicationId "..."
        minSdkVersion 15
        targetSdkVersion 21
    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt'
        }
    }
...
}
dependencies {
    ...
    compile 'com.facebook.android:facebook-android-sdk:3.23.1' //tried older versions as well
}
 
     
    