Error:Execution failed for task ':app:transformClassesWithDexForDebug'.
com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/Library/Java/JavaVirtualMachines/jdk1.8.0_77.jdk/Contents/Home/bin/java'' finished with non-zero exit value 2
what should i do? i do not have multiple copies of firebase-client in libs. its only present in external library.
my dependencies:
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.2.1'
compile 'com.android.support:design:23.2.1'
compile 'com.android.support:support-v4:23.2.1'
compile 'com.google.android.gms:play-services:8.4.0'
compile 'com.google.android.gms:play-services-maps:8.4.0'
compile 'com.parse.bolts:bolts-android:1.+'
compile 'com.parse:parse-android:1.+'
compile 'com.firebase:firebase-client-android:2.5.2+'