what means these warning?

[Cambalinho]

"deprecated conversion from string constant to 'char*' [-Wwrite-strings]"
i have 1 struture:

struct SetText{
	int PosX;
	int PosY;
	char *Text;


};

and heres how i add the values:

SetText *x=new SetText;	x->PosX=5;
	x->PosX=6;
	x->Text ="hello mother";

why i recive that warning in: x->Text ="hello mother"; ?