Android Studio UNEXPECTED TOP-LEVEL EXCEPTION:

Question

Today I am faced with a massive error that doesn\'t let me run a sample project on my phone.

When Android Studio is building the project, it first shows the followin

Answer 1

UNEXPECTED TOP-LEVEL EXCEPTION means that you are getting included twice any .jar.

As @Akhil said you should exclude support-v4 because I guess it's the main problem, but if @Akhil answer didn't help you try it out this method.

compile (':xyzSDK') {
    exclude group: 'com.android.support', module: 'support-v4'
}

Have you tried to delete this line?

compile 'com.android.support:appcompat-v7:22.1.0'

Maybe :xyzSDK allready has appcompat-v7:22+..

I give you there a good answer by @CommonsWare to make a gradle report to see what's the problem.

I'm working for your answer, so if I find something interessant I'll be updating my answer.

Once you've done this you must Build -> Rebuild project

Also as I saw on @dan answer... I let you there a possible answer.

Instead of 1.7 as dan said try to :

compileOptions {

    sourceCompatibility JavaVersion.VERSION_1_7
    targetCompatibility JavaVersion.VERSION_1_7
}

Otherwise you can check it manually going to File > Project Structure or Ctrl+Alt+Shift+S and then on the JDK location see what are you using and if you are using 1.8 change to your 1.7 SDK path

And btw I think that I've read that you have asked if you could use JAVA 8 for Android instead of JAVA 7 if i'm not wrong.... and yes you could use JDK 8, but only if you also use gradle-retrolamba like says on this question..