[SOLVED] cocos2d-x-2.2.6 Android integration

I'm using cocos2d-x-2.2.6 and my app crashes, when runnin on a device. logcat points me on Cocos2dxRenderer.java file and it crashes in

@Override
public void onSurfaceCreated(final GL10 pGL10, final EGLConfig pEGLConfig) {
     Cocos2dxRenderer.nativeInit(this.mScreenWidth, this.mScreenHeight);
     this.mLastTickInNanoSeconds = System.nanoTime();
}

on calling Cocos2dxRenderer.nativeInit(this.mScreenWidth, this.mScreenHeight);

error is:

JNI DETECTED ERROR IN APPLICATION: JNI FindClass called with pending exception 'java.lang.NoSuchMethodError' thrown in void org.cocos2dx.lib.Cocos2dxRenderer.nativeInit(int, int):-2 in call to FindClass

What could be a reason of it? Thanks.