Ok well I trying to follow the tutorial to create the Data Provider, but am having trouble compiling the DataProvider.java file that I have. I have created a com.lightstreamer.adapters.stockquotesystem in the Lightstreamer\adapters folder and have put my provider into this folder along with the adapters.xml file. When I compile the DataProvider I get the following errors, can someone help?

C:\Lightstreamer_Moderato\Lightstreamer\adapters\c om\lightstreamer\adapters\stoc
kquotesystem>javac StockQuoteSystem.java
StockQuoteSystem.java:8: package com.lightstreamer.interfaces.data does not exis
t
import com.lightstreamer.interfaces.data.DataProvider;
^
StockQuoteSystem.java:9: package com.lightstreamer.interfaces.data does not exis
t
import com.lightstreamer.interfaces.data.DataProviderExce ption;
^
StockQuoteSystem.java:10: package com.lightstreamer.interfaces.data does not exi
st
import com.lightstreamer.interfaces.data.FailureException ;
^
StockQuoteSystem.java:11: package com.lightstreamer.interfaces.data does not exi
st
import com.lightstreamer.interfaces.data.ItemEventListene r;
^
StockQuoteSystem.java:12: package com.lightstreamer.interfaces.data does not exi
st
import com.lightstreamer.interfaces.data.SubscriptionExce ption;
^
StockQuoteSystem.java:14: cannot find symbol
symbol: class DataProvider
public class StockQuoteSystem implements DataProvider {
^
StockQuoteSystem.java:16: cannot find symbol
symbol : class ItemEventListener
location: class com.lightstreamer.adapters.stockquotesystem.StockQ uoteSystem
private ItemEventListener listener;
^
StockQuoteSystem.java:19: cannot find symbol
symbol : class DataProviderException
location: class com.lightstreamer.adapters.stockquotesystem.StockQ uoteSystem
public void init(Map params, File configDir) throws DataProviderException {

^
StockQuoteSystem.java:24: cannot find symbol
symbol : class SubscriptionException
location: class com.lightstreamer.adapters.stockquotesystem.StockQ uoteSystem
throws SubscriptionException {
^
StockQuoteSystem.java:29: cannot find symbol
symbol : class ItemEventListener
location: class com.lightstreamer.adapters.stockquotesystem.StockQ uoteSystem
public void setListener(ItemEventListener listener) {
^
StockQuoteSystem.java:36: cannot find symbol
symbol : class SubscriptionException
location: class com.lightstreamer.adapters.stockquotesystem.StockQ uoteSystem
throws SubscriptionException, FailureException {
^
StockQuoteSystem.java:36: cannot find symbol
symbol : class FailureException
location: class com.lightstreamer.adapters.stockquotesystem.StockQ uoteSystem
throws SubscriptionException, FailureException {
^
StockQuoteSystem.java:48: cannot find symbol
symbol : class SubscriptionException
location: class com.lightstreamer.adapters.stockquotesystem.StockQ uoteSystem
public synchronized void unsubscribe(String itemName) throws SubscriptionEx
ception,
^
StockQuoteSystem.java:49: cannot find symbol
symbol : class FailureException
location: class com.lightstreamer.adapters.stockquotesystem.StockQ uoteSystem
FailureException {
^
14 errors