Okay, this is pretty bad error and it has not been resolved. I have a business class ArchiveCourse which has several methods that communicates with the data access layer. Now, I added a new method in the ArchiveCourse class named "GetMyCourses()". Everything is good but the problem comes when I try to access this method from the code behind file of a webform. It is not able to recognize the new method "GetMyCourses()". So, I right clicked on my class and select "Go to defination" this opened a new window with meta file and inside the meta file I can see that there is no "GetMyCourses()" method defined. Why is that since, I already defined the GetMyCourses() method inside the ArchiveCourse class. I can see the method in the ArchiveCourse class. I am not sure what is wrong with Visual Studio.NET 2005 Pro but this is very annoying. I shut down the VS and started it again but same thing. It is not able to recognize the "GetMyCourses()" method.