Application exception just after start

Hello, I'm new to this so one question that I saw it repeats a lot, but it seems I simply cannot find the answer. I installed everything properly (I'm and android developer, so i had a lot of stuff, but just in case i followed the tutorial completely, so i have the same structure) like said here: [url]https://ar.qualcomm.at/qdevnet/sdk/android[/url] And then i went to: Step 2: Compiling a Simple Project. Everything build fine, apk is created, but when i run it on my device, crash... ERROR/AndroidRuntime(14445): java.lang.NoSuchMethodError: com.unity3d.player.UnityPlayer.windowFocusChanged this one seems to be a popular one, but with no solution that i could find. I tried to get this project from StagingArea also and compile it in Eclipse, and the same error occurs. When I declare this same project an library ([url]http://unity3d.com/support/documenta...20Eclipse.html[/url]) it compiles (however there are some manifest errors about the screenSize, but i fix it by removin' it ). When I run the project like this, it starts, it shows the splash screen, and than the black screen and nothing happens. Camera is not activated, so i cannot scan the marker. Can some one please help me with this to move on? - I'm stuck with this for about two days now, and starting to get frustrated so much I'm thinking about abandoning this AR (but it looks so promising). I'm running HTC Desire with CyanogenMod 7 (Android 2.3.7), on Windows 7 x64. Unity 3.4.0.0f5 with vuforia vuforia-sdk-android-1-5-9