I just came across this one myself. I imagine that by now you already have a solution, but I'm posting for the benefit of the next person to come across it. You can safely ignore the error. When you get the error dialog, you choose "No". When you try and save the table, you'll get a pre-save validation warning (and you choose Yes to indicate you want to attempt to save). Or you can always use ALTER TABLE.

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Microsoft SQL Server Management Studio

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Error validating the default for column 'NameGuid'.

Do you want to cancel your changes ?

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Yes No Help

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