ClassCastException in JUnit tests with Android KitKat

I'm figuring a problem on Android KitKat that didn't appear before. I'm using JUnit tests with Robotium, and everything in the test works well, except on Android KitKat (tried with a Nexus 4 updated and a nexus 5). When I want to perform a solo action, I always have the same exception : ``` java.lang.ClassCastException: java.util.ArrayList cannot be cast to android.view.View[] at com.jayway.android.robotium.solo.ViewFetcher.getWindowDecorViews(ViewFetcher.java:399) at com.jayway.android.robotium.solo.ViewFetcher.getAllViews(ViewFetcher.java:81) at com.jayway.android.robotium.solo.Searcher.searchFor(Searcher.java:165) at com.jayway.android.robotium.solo.Waiter.waitForView(Waiter.java:254) at com.jayway.android.robotium.solo.Waiter.waitForView(Waiter.java:233) at com.jayway.android.robotium.solo.Solo.clickOnView(Solo.java:967) at com.example.TestClass.testMethod(TestClass.java:61) at java.lang.reflect.Method.invokeNative(Native Method) at android.test.InstrumentationTestCase.runMethod(InstrumentationTestCase.java:214) at android.test.InstrumentationTestCase.runTest(InstrumentationTestCase.java:199) at android.test.ActivityInstrumentationTestCase2.runTest(ActivityInstrumentationTestCase2.java:192) at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:191) at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:176) at android.test.InstrumentationTestRunner.onStart(InstrumentationTestRunner.java:554) at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1701) ``` May you know if there is a reason for that ?