Such Spam Much Wow

Here is the error that I received: ./Game.java:18: error: cannot find symbol
if (mMissed.indexOf(letter) >= 0 || mHits.indexOf(letter) >= 0) {
^
symbol: variable mMissed
location: class Game
./Prompter.java:23: error: cannot find symbol
String guessAsString = console.readLine("Enter a letter: ");
^
symbol: variable console
location: class Prompter
./Prompter.java:27: error: cannot find symbol
isvalidGuess = true;
^
symbol: variable isvalidGuess
location: class Prompter
./Prompter.java:29: error: cannot find symbol
System.out.println("Please try again \n", iae.getMessage);
^
symbol: variable getMessage
location: variable iae of type IllegalArgumentException
./Prompter.java:37: error: cannot find symbol
return mGame.applyGuess(guess);
^
symbol: variable guess
location: class Prompter
5 errors