Sometimes though when you’re changing interfaces across several projects, you can end up in a stink because a method reference is removed or a signature is changed, and you end up with the following error:

When i build in Visual Studio, in order to save time, I don’t always do a <ctrl><shift>-<b> (Rebuild Solution). instead, i do a <alt>-<b>,<u> in order to rebuild just the project, and its dependencies (faster build).

I’ve had this error come up a few times, and it’s easy to solve – in case i ever forget here it is:.

Server Error in ‘/’ Application.
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?
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.MissingMethodException: ?

When you get this problem, just re-build the entire project.