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When one or more fields are declared as a key for a file, there cannot be duplicate values in those field(s) for entries in the file. The values being passed for validation, when combined with values for unchanging fields in the entry if necessary, create a duplicate key. The changes destroy the integrity of the key. Therefore, they are invalid.
New values are invalid because they create a duplicate Key '|1|' for the |2| file.
'1' means Name of Key.
'2' means Name of affected file.
Reviewed/Updated: March 4, 2007