Not able to run the sample program

I installed Couchbase Server on my machine with default setting and then tried to run the sample program and got the following error:

2012-06-28 21:12:12.677 INFO com.couchbase.client.CouchbaseConnection: Added

{QA sa=/169.254.20.219:11210, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}

to connect queue
2012-06-28 21:12:17.309 WARN com.couchbase.client.CouchbaseConnection: Node exepcted to receive data is inactive. This could be due to afailure within the cluster. Will check for updated configuration. Key without a configured node is: spoon.
Jun 28, 2012 9:12:17 PM com.couchbase.client.CouchbaseConnectionFactory checkConfigUpdate
WARNING: No reconnect required, though check requested. Current config check is 1 out of a threshold of 10.
Exception in thread "main" net.spy.memcached.OperationTimeoutException: Timeout waiting for value
at net.spy.memcached.MemcachedClient.get(MemcachedClient.java:1003)
at net.spy.memcached.MemcachedClient.get(MemcachedClient.java:1018)
at Main.main(Main.java:34)
Caused by: net.spy.memcached.internal.CheckedOperationTimeoutException: Timed out waiting for operation - failing node: 169.254.20.219/169.254.20.219:11210
at net.spy.memcached.internal.OperationFuture.get(OperationFuture.java:93)
at net.spy.memcached.internal.GetFuture.get(GetFuture.java:62)
at net.spy.memcached.MemcachedClient.get(MemcachedClient.java:997)
... 2 more