How can I fix this problem?
First, you find out what the problem is.
Hi,
Welcome to the forum.
Please read the first post in any forum entitled how to use this forum.
http://forum.arduino.cc/index.php/topic,148850.0.html then look down to item #7 about how to post your code.
It will be formatted in a scrolling window that makes it easier to read.
We need to see your code and the error list that you get on compilation.
What model Arduino are you using?
Thanks.. Tom... 
AWOL:
First, you find out what the problem is.
