Record-format name in externally-described file already defined; record format ignored.
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Cause . . . . . : A record-format name from the external description duplicates a name defined in a preceding external file, or has been defined with type other than record format, or is a reserved word. The external record-format name is ignored.
Recovery . . . : Specify unique names or use keyword IGNORE to ignore the record format, or use keyword RENAME to rename the record format. Compile again.