Run-Time Error variable not defined?

[yogi_bear_79]

I shorted the following code for the purpose of this post. I get a
run-time error that
value is not defined. I don't understand what I have done wrong.
Through varios testing methods I've noticed it will throw the error on
both variables subChoice and value. Thanks for yuor time.

void mainMenu(int choice)
{
int subChoice, value;

switch ( choice )
{
case 1:
............
cout << "\n\n Please select a choice from the menu: ";
cin >subChoice;
cout << "\n\n Please enter a number to convert: ";
cin >value;
break;
case 2:
..........
}

subMenu(subChoice, value);
}