View Compilation Error

0_0_6588217_15396\Main.java:9: cannot find symbol
symbol  : class Mgd
location: class Main
    public static Queue<Mgd> queue = new LinkedList<Mgd>();
                        ^
0_0_6588217_15396\Main.java:9: cannot find symbol
symbol  : class Mgd
location: class Main
    public static Queue<Mgd> queue = new LinkedList<Mgd>();
                                                    ^
2 errors