The namespace 'x' already contains a definition for 'FixupCollection'

c# entities
KevinDeus picture KevinDeus · Dec 16, 2010 · Viewed 7.3k times · Source

Everytime I update my entity model (by right-clicking on the .edmx file and selecting 'update model from database') it creates a new model.tt file (which winds up being named model1.tt, etc) which then generates this error.

I then delete model1.tt to remedy it.. However..

How do I keep this from happening? is there a better way to update the model?

Answer

Jon picture Jon · Mar 16, 2012

See this article on including multiple .edmx files and see if this helps resolve your issue:

http://msdn.microsoft.com/en-us/library/cc982041.aspx

Hope this helps!

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