DBFCDX/610   Argument error

     Explanation:  The index may be corrupted.

     Action:  Make sure that you did not create the index using a
     variable as in:

     Local cDbfName := "MyDbf"
     USE ( cDbfName ) NEW
     INDEX ON ( cDbfName )->field TAG field TO Myindex.cdx
     USE
     USE ( cDbfName ) NEW

     This will cause the DBFCDX/610 error when the database (.dbf) file is
     reopened using an index created like this.  Also, this is very bad
     coding.