package powerups;

import models.Club;

import javax.xml.transform.Result;
import java.io.Serializable;

public abstract class Powerup implements Serializable {

    Club club;

    public Powerup(Club club) {

        this.club = club;
    }

    public abstract Result render();
}

@@ -36,35 +36,23 @@
 ub;%0A
-%0A
 import 
-javax.xml.transform
+play.mvc
 .Res
@@ -56,16 +56,17 @@
 Result;%0A
+%0A
 import j
@@ -192,17 +192,16 @@
 club) %7B%0A
-%0A
         
@@ -261,11 +261,54 @@
 ender();
+%0A%0A    public static void install() %7B%0A%0A    %7D
 %0A%7D%0A

Change return type to correct value.