expcted dec error

I keep getting expected declaration error.. but i dont know why, i have included all the ; and () ect.. i cant see anything missin thoudh..

Code:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <ctype.h>

#ifndef UTILITY_H
#define UTILITY_H

/* My definition prototypes */

int read_Dictionary(char* vocabFile, VocabPtr vp);
int checkWord(char* inputData);
char* lowercase(char* string);
char* removeNewL(char* inputData);
int getVocabSize(VocabPtr vp);
NodePtr getHighestFreqWord(VocabPtr vp);
int scanFile(char* testFile, VocabPtr vp);
#endif

How does it know what VocabPtr is?

oh i needed to include another Heade file...