Object::connect: Parentheses expected, slot...

[bnilsson]

I am trying to connect a QSpinBox to a slot:

connect(Layer_spinBox, SIGNAL(valueChanged(int)),this, SLOT(setLayer(int)));
 
void
JDFWindow::setLayer(int lyr)
{
	active_layer_number = lyr;
	redraw();
}

connect(Layer_spinBox, SIGNAL(valueChanged(int)),this, SLOT(setLayer(int)));

void
JDFWindow::setLayer(int lyr)
{
	active_layer_number = lyr;
	redraw();
}

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and

class JDFWindow : public QWidget, public Ui::JDFView
{
Q_OBJECT
public:
	JDFWindow( QWidget * parent = 0, Qt::WFlags f = 0 );
	~JDFWindow();
	void redraw();
 
 
signals:
	void valueChanged(int);
private slots:
	void setLayer(int);
 
private:
 
protected:
	QRectF screct;
	myQGraphicsScene *scene;
	JOB *Job;
	int active_layer_number;
};

class JDFWindow : public QWidget, public Ui::JDFView
{
Q_OBJECT
public:
	JDFWindow( QWidget * parent = 0, Qt::WFlags f = 0 );
	~JDFWindow();
	void redraw();

	
signals:
	void valueChanged(int);
private slots:
	void setLayer(int);

private:

protected:
	QRectF screct;
	myQGraphicsScene *scene;
	JOB *Job;
	int active_layer_number;
};

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I get this strange message from the console:

Object::connect: Parentheses expected, slot JDFWindow::
Object::connect: (sender name: 'Layer_spinBox')
Object::connect: (receiver name: 'JDFView')

The slot works, I get the correct value form the QSpinBox, but the context of the JDFWindow object is lost when setLayer() is entered , the content of my object "Job" is garbage when enter the slot, while it was ok before I triggered the QSpinBox..

The console message tells me soething is wrong with my syntax, but I cannot figure out what.

Can someone enlighten me?