[NAnt-users] NANT fails with "GUID values do not match", but with matching GUIDs?

[Justice Gray]

Hi there!

I'm having the following problem with NANT.  I am currently attempting to run a build of our solution, but running my build file fails in the following manner:

 [solution] Starting solution build.
 [solution] GUID corruption detected for project 'XX.Presentation.Views.Summary'. GUID values in project file and solution file do not match ('{9277ABB6-8305-480F-828F-92C99DD42999}' and '{9277ABB6-8305-480F-828F-92C99DD42899}'). Please correct this manually.


I might be missing something here, but aren't these GUIDs identical?  Is this a bug, or am I missing something important?  Apologies for my ignorance - I'm a newbie at NANT!

Thanks for any help you can provide,
-Justice