android - gles2 Moving a sprite with an AnalogController -

hello new andengine , have been using andengine cookbook , have reached part creating analogcontroller. have written code move , rotate sprite whenever run runtime error.

mcontroller = new analogonscreencontrol(controllerx, controllery, mcamera, controllerbaseregion, controllerknobregion, 0.1f, mengine.getvertexbufferobjectmanager(), new ianalogonscreencontrollistener() {     @override     public void oncontrolchange(     // todo auto-generated method stub     // pvalues direction of dragging     baseonscreencontrol pbaseonscreencontrol,     float pvaluex, float pvaluey) {         mainsprite.setposition(mainsprite.getx() + (pvaluex + 2),         mainsprite.gety() + (pvaluey + 2 ));         mainsprite.setrotation(pvaluex);         log.d("mainsprite", string.valueof(mainsprite.getrotation()));     }