While And Nested Switch EStructures - Cannot Find Symbol

I was trying something in java, while coding this method i used a do...while and a nested switch estructures... The problem is that when i try to compile it the only error I have is:

Album.java:87: error: cannot find symbol
while( seguirLoop == true );
^
symbol: variable seguirLoop
location: class Album
1 error

And here is the code:

//Metodo seleccion de modo
public void SeleccionDeModo()
{
do
{
//Permite al usuario seleccionar metodo de escucha
System.out.println("Seleccione metodo de escucha:");
System.out.println("0 = Secuencia normal");
System.out.println("1 = Reproduccion aleatoria");
 
[code]...

I have already saw some other examples, but I just cant find the error here..