why I kept getting an error message in mysql stored procedure

Question

I have a problem with the stored procedure of getallfiles. When I execute that stored procedure, I got an error message that says:

"Error

SQL query:

CREATE PROCEDURE GetAllFiles()
BEGIN
     DECLARE CheckExists int

MySQL said: Documentation

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3"

Here's my stored procedure

CREATE PROCEDURE GetAllFiles()
BEGIN
 # declaring checkexists for if the files exists
    DECLARE CheckExists int;  
    DECLARE specialty CONDITION FOR SQLSTATE '45000';
    SET CheckExists = 0;  
   # checking to see how many files are there
    SELECT COUNT(files.Files,Users.FirstName,Users.LastName,Users.EmailAddress) INTO CheckExists from
     files,Users where files.UserID = Users.UserID;

  # checking to see if the files exists
    IF (CheckExists < 0) THEN 
         SIGNAL SQLSTATE '45000'
      SET MESSAGE_TEXT = 'Files does not exists';
    ELSE 
        select files.Files,Users.firstname,Users.lastname,Users.EmailAddress from files,Users
where files.UserID = Users.UserID;  
    END IF; 


END;