Some Common Obstacles While Implementing WCF

1)Error:Unknown directive ServiceHost in WCF service
Solution:
Reinstall the VS2008 for fixing the error .Confliction in version 2.0.0.0 of Windows Communication Foundation (pre-release) as well as version 3.0.0.0 (rtm)causes this error

2)Sending large amount of Data with WCF service
Solution:1)WCF Message Streaming
If InsufficientMemoryException is thrown when writing to the channel
then you need to stream both request and response data from client and server
respectively..

Some more problems and solutions yet to be added.Comments are welcome from the readers